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Strangest planets | Space documentary 2025
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a new super Earth has been spotted by
astronomers and it's quite intriguing
this planet called toi
715b is about 1 and 1/2 the size of
Earth which is why it's called the super
Earth it's also relatively close to us
in space terms only 137 light years away
for comparison most exoplanets are
hundreds of light years away and all the
interesting stuff like black holes and
nebulas are usually more than thousands
of light years away from us so could it
be
habitable the habitable zone is an
estimate of where a planet might have
the right conditions for liquid water
this is what we call some distance from
the Star where the temperatures on the
planet should be okayish and water
should stay liquid on its surface it's
not super precise because it depends on
a bunch of factors like the type of star
how reflective the planet is its size
and so on also just being in this Zone
isn't enough for water to actually be
there the planet also needs the right
kind of atmosphere and a few other
things so we invented a stricter
definition in 2014 the conservative
habitable zone it's a more precise term
to finding the best candidates that have
liquid water otherwise we get too many
potentially habitable planets that are
not actually habitable at all the chz is
based on how much energy a planet gets
from its star compar compared to Earth
if a rocky planet gets between 40 to
85% it's considered to be in the chz no
matter how far away it is from its star
these planets have a higher chance of
being habitable and yes toi
7115b is located
there this superar orbits the mtype star
also called Red Dwarf it's a star that's
much smaller and cooler than our sun
about a quarter of the sun's size and
mass but if the planet is located in the
habitable zone it's actually a better
option for Life red dwarfs live much
longer than our son a yellow dwarf this
also means that they have more time to
form little creatures on their planets
and this red dwarf really is older than
our star our son is 4.6 billion years
old and this star is 6.6 billion years
old give or take a few hundred million
it doesn't have much magnetic AC AC ity
so it's not dangerous it doesn't flare
up like younger red dwarves these flares
can be super strong and might even hurt
planets by taking away their atmospheres
although some planets around it do have
thinner atmospheres it seems like this
red dwarf has already gone all out these
red dwarfs are where we're looking for
planets that could support life right
now our super Earth is really close to
its star zooming around it in just 19
days since the the star is small and the
planet is so close the planet passing in
front of its star happens a lot and
looks really clear this makes it easy
for telescopes like the James web to
study its atmosphere without needing too
much
time now speaking of the James web Space
Telescope it's bringing us into a new
era of understanding distant planets
beyond our solar system imagine being
able to see what gases make up the air
on a planet millions of light years away
James web will help us to find worlds
that could support life right now it's
trying to figure out whether toi
7115b has an atmosphere if it does its
atmosphere might be easier to spot
compared to a planet that's drier and
denser and then we might get even more
hyp because it would look like a good
place for life on top of all that there
might be another planet in this system
also in the habitable zone we're not
sure whether it's really there is just a
candidate with a crazy name but if it
turns out to be real it would be about
the size of Earth also it would be the
smallest planet in the habitable zone
ever spotted by the test
telescope now another cool thing about
toi
715b is that it cannot just have water
on it but be an entire Water World an
ocean planet is a type of planet that
has an ocean covering its surface or has
subsurface oceans they might not have
much dry land because the water can
cover everything sometimes the entire
planet can be covered in other liquids
like lava or ammonia when it comes to
planets outside our solar system we
can't see surface water directly with
our current technology instead
scientists look for water vapor in the
atmosphere as a hint there might be
liquid water below and of course we
wonder if these planets can have life
hopefully not in the form of Leviathan
likee monsters our models show that
planets with oceans might be pretty
common in our galaxy this means there
could be lots of ocean worlds out there
waiting to be
discovered but the most important part
about toi
7115b is that it's in the so-called
small planet radius Gap if we give the
planets a lineup there will be those
that are bigger and smaller than Earth
but there's a sudden Gap in planets that
are about from 1 and 1/2 to two times
bigger than ours where are they this Gap
is interesting to scientists because it
tells us something about how planets
form and change over time it's not that
planets don't form in this size range
they actually start off larger and then
lose some of their Mass like a balloon
gradually deflating perhaps it happens
because of how they orbit their stars
with stars blowing away some of their
mass as they dance around it as our sun
does with gas from Comet tailes this G
map holds a lot of mystery and planets
like our new superar are clues that
could help us unravel it we aren't sure
whether it exists around red dwarfs
maybe it's a gap in how dense these
planets are rather than in their actual
size so studying our discovered planet
is even more interesting it'll help us
learn more about distant stars and their
planets now I mentioned test a while
back NASA's test transiting exoplanet
survey satellite has been in space for
six years now and has been incredibly
successful NASA launched test because we
already found over 5,000 planets
orbiting other stars mainly thanks to
the Kepler Telescope but Kepler mostly
found large planets not necessarily like
Earth we decided to focus tests on
finding smaller earthlike planets around
nearby Bright Stars making them easier
to study with future
telescopes here's how it works the
camera observes stars and looks for
changes in their brightness if the
brightness suddenly drops for a while
and then gets back it could mean there
is a planet passing in front of it but
Stars can dim for other reasons too for
example flaring up or having dark spots
on their surface which is why we need to
be careful with this data Tess shows us
the size and orbit of these planets then
ground telescopes help determine their
Mass with these three parameters we can
figure out what the planets are made of
and if they're Rocky like Earth or gassy
like Jupiter yeah you want to avoid
Jupiter after taco
night one example of Tessa's discoveries
was the toi 700 system there it
discovered its first ever earthlike
Planet toi700d
this exoplanet also orbited a red dwarf
and it's even closer to us about 100
Lighty years away unfortunately it's
unlikely to be habitable because the
temperatures there are crazy another big
Discovery was made in the Au microscopy
system Tess discovered a planet about
four times the size of Earth and another
nearly three times earth size this
system has become a key area for
studying how stars and planets form and
change over time Tess has also spotted a
variety of other exciting finds
including Supernova hot worlds and so on
and as it enters its sixth year we can
only expect more exciting findings to
come so Mars has several faces no really
back in 1976 when the Viking one Orbiter
was checking out the red planet it
spotted something interesting a big
structure that looked like a human face
it was in the region called Sidonia it
soon became very popular a bit later we
also discovered the so-called Crown face
in Libya Mones Mars and General has a
lot of strange structures on it in 2022
we spotted a door-like structure there
NASA's Curiosity Rover snap some
pictures of a rocky Mound called East
Cliffs on Mount sharp this mound has
natural cracks in it and one of them is
about the size of a dog door like
something from an ancient Egyptian tomb
a lot of people hyped that story up the
image was shared widely on social media
making the crack look bigger than it
really is some people think that it's
hinting at extraterrestrial life but
after looking closely NASA found out
that it was just a narrow crack in the
Rocky terrain these cracks and gaps are
pretty normal in Rocky areas both on
Earth and Mars the crack form naturally
over time maybe from wind erosion or
Mars
Quakes Mars is a gold mine of mysterious
structures recently we found some
strange spiral shapes there these are
giant coils made of lava and they look
like big springs or loops for years we
weren't sure whether Martian valleys
were formed by lava or ice these lava
coils are shedding light on that mystery
now thanks to higher resolution images
from NASA's Mars reconnaissance Orbiter
researchers have spotted 269 lava
spirals that can't be explained by Ice
related activities what's fascinating is
these lava coils are like the ones we
see on earth like those formed by
Hawaiian lava flows these spirals are so
well preserved that they were easily
overlooked before they range from 16 to
almost 100 ft wide and are subtle
blending into the dusty Martian
landscape these coils can teach us a lot
about Mars's composition especially its
crust and mantle we still don't know
much about those but Mars isn't the only
planet with strange structures on it for
example Saturn the gas giant of our
solar system has a fascinating feature
at its North Pole a huge hexagon this is
a hexagon shaped cloud pattern it's
about 9,000 m long making it larger than
the diameter of Earth is thought to be a
jet stream made of gases moving very
fast at about 200 m per hour this
hexagon was first spotted by the Voyager
mission in the80s and later seen up
close by the Cassini mission in 2006 the
Cassini Mission noticed a change in its
color from Blue to Golden over time
there are different ideas about why
Saturn has this thing one Theory
suggests it forms because of the way
winds move at different speeds near
Saturn poles similar shapes were created
in lab experiments when liquids were
rotated at different speeds another idea
suggest that a slow spinning stream of
air along with Saturn's special weather
patterns might be responsible in 2020 we
found that When Storms are surrounded by
winds swirling in the opposite direction
they can create a steady hexagon shape
so far this is the most likely
explanation Saturn also got lucky with
the bizarre moons one of them is called
Lapidus this Moon has a weird feature a
huge Ridge that wraps around its middle
like a giant belt this basically makes
it look like a giant Walnut where's my
Nutcracker this Ridge is incredibly tall
by our standards around 8 up to 12 M
high and stretching 124 Mi wide it
covers more than 3/4 of the moon's
surface and is considered the third
largest mountain range in the entire
solar system now we don't have a clue
about how this enormous Ridge formed
it's unlike anything seen on other
planets or moons there's one idea though
the ridge might be the remnants of a
dead Moon but's say billions of years
ago a colossal impact shattered chunks
of material off Lapidus these pieces
circled around the Moon forming a mini
moon or subsatellite and over time the
gravitational pull of Lapidus tore this
mini moon apart creating a ring of
debris around it as the debris from this
ring fell back onto Lapidus it built up
the massive Ridge we see today they
think this process happened quickly
maybe over centuries Saturn's gravity
didn't interfere because luckily Lapidus
was quite far away from it if Lapidus
was closer to Saturn its Moon might have
been pulled away but we do need more
simulations to see if this theory is
true Titan another one of Saturn's moons
also has some weird stuff going on in
its methane Seas scientists have spotted
these strange bright spot spots called
Magic islands that seem to pop up and
disappear over time we have no idea what
they are Titan's atmosphere is packed
with complex organic molecules that
Clump together and fall to its surface
like snow these magic eyland might be
snow clumps that soak up methane and
sink very slowly but there's a problem
in water molecules stick together which
is why stuff can float on top of it but
methane is different it likes to grab
onto other molecules so it makes any
solid thing sink immediately yet these
magic Islands don't sink there's a
theory that these islands might be like
sponges made of ice with lots of holes
when pieces of this holy Ice come loose
from the edge of the lake they can float
on tighten Seas for a bit before going
down under there are also other ideas
like bubbles of nitrogen gas or waves
caused by wind we need more research to
know for sure moons like to be weird
just look at our own one in 1971 we
found a patch with missing soil on our
moon and it looks like a Blue Lake they
call this mysterious spot AA we first
spotted it during the Apollo 15 mission
in 1971 later the Apollo 17 Mission took
clearer pictures of it this spot shaped
like a bluish d letter is one of the
weirdest things on the moon the color
comes from special rocks rich in
titanium called basalts these rocks
cover I this floor and make it look blue
there are also bluish areas near the
edges of the Mounds inside aa aa is
unique and probably has a long history
it might have had volcanic activity with
Mounds that are about 3.5 billion years
old and similar to the surface age of
the volcanic field that surrounds
in now our moon has its own fat just
like those on Mars there's an area near
the moon's South Pole that looks like a
face but it's just a bunch of craters
and ship Shadows that happen to make an
image resembling a face when seen from
far away these craters have been there
for billions of years and cover about
16% of the moon's surface some of these
craters might even have water and ice
inside of them you might be wondering
why there are so many faces in our solar
system well that's because our brains
are wired to recognize faces even when
there aren't any it's a phenomenon
called peridia our brains try to make
sense of shapes so when we see something
that looks a bit like a human our brain
turns it into one because it's familiar
like when you see a shadow figure on a
chair with clothes or even on Mercury
some people see shapes like Mickey Mouse
so don't worry it's not extraterrestrial
life it's our brains that play tricks on
us making us see familiar shapes like
faces even where they don't really
exist this planet yeah the one right
here shouldn't exist but it does a newly
discovered CED planet rotates around a
star that's much smaller and dimmer than
our sun the planet however is enormous
such a tiny star couldn't create it so
it's like finding an ostrich egg in a
chicken
[Music]
coop a team at Penn State build a
special tool called the habitable zone
Planet finder it's an instrument that's
supposed to find planets around dim cool
Stars it's connected to a big telescope
in Texas the tool looks at the light
from these Stars which is mostly in the
near infrared beyond what our eyes can
see this gadget can spot changes in a
star speed caused by a planet if a star
movement slightly changes that means
there must be a gravitational pool
nearby years ago this technique helped
find the first known exoplanet around a
star like our sun today we've improved
this method to make more precise
measurements our main goal is to find
earthlike planets they should be Rocky
and located in habitable zones areas
around Stars where liquid water could
exist the Doppler technique isn't that
great at finding earthlike worlds yet
but works well for cool dim stars and
that's how we discovered the impossible
LHS 3154
B planets usually form in discs made of
gas and dust in space picture a flat
spinning cloud of tiny particles these
particles come together and stick to
each other creating a flat rotating disc
over time these tiny bits combined to
form a solid core this is the starting
point for a planet once the core is
there it attracts more dust and even gas
like hydrogen and helium but making a
planet this way isn't easy they need a
lot of stuff mass and materials this
process is called core accretion stars
are a huge help in that process usually
big stars have more gravity so they can
gather more stuff to form planets but
the star we discovered recently isn't
very big it's nine times smaller than
our side a star this small shouldn't
have a big enough disc to make a heavy
planet to do that its disc should have
been at least 10 times bigger but this
heavy Planet LHS 3154 B
exists now this mysterious planet is 13
times heavier than our Earth it's
similar in size to Neptune it's about 50
light years away from us in the Hercules
constellation which in space terms is
very very close the planet is also super
close to its star completing one year in
almost 4 days this discovery is making
scientists rethink their ideas about how
planets and stars come into existence
there are new theories coming around for
example a theory called gravitational
instability it says that instead of the
pieces coming together bit by bit the
material in the disc collapses all at
once directly creating a planet but even
with this the Theory it's hard to
explain how such a heavy Planet could
form without a really massive disc it'll
take us some time to figure out the
truth this isn't the first planet that
makes us doubt our theories recently
scientists found another planet called
Hala this planet is orbiting a star
called baked and just like the previous
one it shouldn't really exist it's way
too close to a star Stars change a lot
during their lives normally when a star
becomes big and prepares to leave this
world it's called the red giant stage a
star like that tends to destroy or push
away any nearby planets creating a huge
mass Hala rotates around a red giant and
it should have been swallowed or
destroyed by the expanding star a long
time ago but it's still hanging there
even though Baku has already started
burning helium and shrunk to a smaller
size than expected Hala isn't bothered
in the slightest scientists called Hala
The Forbidden Planet ooh this discovery
challenges what we thought about how
planets survive near aging Stars it
raises two theories one suggests that
baked was once two stars a white door
and a red giant Hala orbited them both
and they merged before the red giant
fully expanded this allowed holla to
survive because the extra helium from
the white dwarf prevented the red giant
from growing too much the second theory
says that H form from the debris created
when the two stars mered merged in this
scenario Hollow would be a very young
Planet orbiting an elderly star
astronomers plan to continue studing
Hala and look for more planets like
that another odd ball besides me is
called LT
9779 B this one scares us too because
it's too shiny the planet reflects 80%
of the light from its star regular
mirrors reflect from 85 to Almost 100%
of light
which means that this mysterious planet
should look like a rough mirror with
aluminum or silver likee Reflections
this is another Neptune siiz planet it's
located 268 light years from us and was
discovered by NASA's T spacecraft it
completes a full rotation around its
star in just 19 hours it's so close to
its star that it's scorching hot
reaching temp temperatures over 3,600 de
F normally planets this close lose their
atmosphere spere and turn into bare
rocks but this one Breaks the Rules
again now this time we know the secret
of its survival it's because of the
planet's shiny metallic clouds which are
made of glass and titanium salt these
clouds rain titanium onto its hot
surface they also reflect a lot of the
light preventing the planet from getting
too hot and losing its atmosphere it's
like having a mirror Shield this planet
size also surprised scientists if is way
bigger than Earth other planets this
close to their stars are either much
bigger gas giants or small rocky planets
this planet is a smaller gas giant and
scientists didn't expect it to exist so
close to its star this is the shiniest
planet ever found even shinier than
Venus but despite its cool appearance
it's probably not a friendly place for
life because of its extreme temperatures
in strange metallic rain
and our final rule breaker is a planet
called was
107b scientists discovered it using the
James web Space Telescope it's located
around 208 light years from us in the
Virgo constellation it's also fast and
completes an orbit arounded star in just
6 days this is a super Neptune exoplanet
it's similar to Jupiter in some ways
including the same size and scorching
hot temperatures but the main difference
is that it's much lighter weaker and
less dense this is the least dense
Planet we've discovered so far after
researching some more we also found that
it has a tail the helium on the planet
extends beyond the transit egress the
planet is slowly losing its atmosphere
due to extreme ultraviolet radiation
from the Star this creates a comet-like
tail so it looks like a fluffy
Comet but that was just the beginning
the planet's low density or fluffiness
allowed astronomers to study its
atmosphere in detail they found some
surprising things like water vapor and
clouds made of fine silicate particles
which are like really fine grained sand
the planet's hostar doesn't emit a lot
of high energy light but since wasp 107b
is so loose the light can penetrate deep
into its atmosphere this creates sulfur
dioxide that smell when you light a
match in other words it's a fluffy plet
that rains sand and smells like matches
the researchers think the sand clouds in
the atmosphere form in a similar way to
clouds on Earth they just have droplets
of sand instead of water these sand
droplets condense fall turn into
silicate vapor in hot layers within the
planet and then rise again to form
clouds once more and once again this
planet couldn't have formed in its
current spot astronomers say that it
likely moved closer to its star from a
birth orbit because it was a attracted
by some heavier neighbor it also follows
a retrograde orbit meaning it orbits in
the opposite direction to its Stars
rotation all these discoveries are
changing how we understand planets and
their atmospheres giving us new insights
into the mysteries of our own solar
system this planet is as light as that
piece of fluff stuck to your sweater in
the scientific world it's called wasp
193b but let's call it the cotton candy
planet
it's located around 12200 Lighty years
away from us sure thing we'll never see
it with our own eyes but scientists say
the cotton candy planet is pretty much
Jupiter's bigger bouncier cousin 50%
more massive it has an extremely low
density combined with other factors such
as high temperatures and the infrared
brightness of its host star that make it
look special may I have a closeup here
please thank you see how fluffy it is
right now you understand that it would
be impossible to stand on its surface
anyways it's not often that you meet
something like wasp 193b at a planetary
party such planets might be fluffy
because they're getting cooked by their
parent Stars puffing up like a
marshmallow that seen too much campfire
action but the thing is if you're that
close to your star and mostly made of a
hydrogen helium cocktail you're not
going to keep your puffiness for long
it's like trying to hold on to a balloon
during a
hurricane exoplanets like this fluffy
guy here are pretty rare but there's
also wasp
1007b and it looks squishy too this one
kicks back 200 Lighty years from us and
it shows the constellation of Virgo as
its official residence from some
perspective you might say that this
planet is a copycat of Earth it has
helium and its atmosphere contains
sulfur dioxide there's some resemblance
for sure but wasp 1007b has the density
of a marshmallow it means we can snoop
through its atmosphere easier than we
could with a heavyweight like Jupiter
scientists were Beyond surprised when
they peered through their super space
goggles the James web space telescopes
Miry cam they spotted clouds made of the
stuff that builds beaches silicate or as
you might know it sand imagine Sand
Castles in the
Sky those sound clouds are way up there
in the penthouse suite of wasp 1007 B's
atmosphere where the thermostat reads a
breezy 932 de Fahrenheit normally You'
need
1,832 de F to cook up this kind of cloud
so scientists are scratching their heads
how did those grainy Puffs get all the
way up there turns out wasp 1007b might
be running its own Sandy water cycle but
with scorching silicates instead of H2O
silicate particles get whooshed up from
the sizzling lower levels by some sort
of cosmic elevator and then they cool
off party together as clouds and
sprinkle down a silicate drizzle
nobody's packing sunscreen for this kind
of Sandstorm
though now look at this Kepler Planet
family located in the Kepler 51 star
system this Cosmic thre pack hangs
around 2400 Lightyear away looking huge
but having the same density as as your
favorite snack and it's cotton candy yet
again scientists have been digging into
what these space treats are made of they
now believe these puffball planets are
big hydrogen helium gas Balloons with a
generous smearing of methane Haze it
also turns out these planets might be
going through a cosmic
downsize now let's talk about a planet
called mascara 5B nope it doesn't look
like one of those cosmetic tubes from
your your mom's drawer scientists say
it's one of the hottest planets ever
discovered they call it an ultra hot
Jupiter showing off its impressive size
almost twice as big as our very own
Jupiter the day side temperature is
around a scorching
4,892 de F while the night side hits
4,172 de fhe no chance for any sort of
Life To Survive out there actually it's
the second hot Nightside temperature
ever recorded to put it in perspective
the temperature of molten lava sits
between 1,2 92° F and
2,282 de F so the planet is a whole lot
hotter than this scorching liquid rock
its temperatures even surpass the
melting point of most metals which is
around
3,632 F scientists mention that the
insane heat on this planet is comparable
to the exhaust of a rocket
engine back in 2005 one famous star
called wait is that a name or a phone
number whatever so turns out this star
has a hot sister and they have very
similar names this hot sister has B at
the end well this place looks like
something from a sci-fi movie as it
rocks a mesmerizing Blue Marble Vibe
according to NASA such an appearance
results from an atmosphere packed with
hazy clouds laced with glass the rain on
this planet is glass filled
precipitation that likes to fall
sideways thanks to Fierce winds blowing
at a speed of 5400
mph and yeah it's the hot sister for a
reason scientists have measured the
daytime temperatures in this nightmarish
world it's around 1,700 de F so when it
rains on this planet it's more like
molten glass pouring down inad of your
typical
Waterworks you may not know it but space
is swarming with wasps I'm talking about
planets called wasp meet wasp
76b this sizzling hot jupiter-like
planet is so out of this world it rains
iron at night there the daytime side is
no less of a fiery nightmare the
temperature there is about 4,300 de F
wasp 76b may be slight slightly smaller
than Jupiter but don't underestimate its
Grandeur this Fireball is located 640
Lighty years away from earth and its
terrifying climate is the result of one
seriously extreme orbit you see these
gas giants are fittingly known as hot
Jupiters they like to keep it hot so
they orbit way too close to their
scorching host stars in this case wasp
76b is nearly 10 times closer to to its
star than Mercury is to our sun that's
way too close for comfort leaving this
rebellious Planet tily locked to the
star so while one side basks in Eternal
Light the other is trapped In Perpetual
Darkness 55 cancre e is a total gem it's
the ratest super Earth ever spotted
scientists initially believed it was
packed with so much carbon that its
insides were blinged out with diamonds
thanks to sane pressure and sizzling
temperatures of
4,892 De F but researchers put a dent in
the diamond hype showing there was
actually less carbon than we had
originally thought well diamonds aren't
actually that rare and expensive after
all they're just well
marketed the last destination for today
is
gj1214b
located 40 light years away from Earth
this planet is like a super sized earth
almost three times bigger in diameter
and a whopping seven times heavier it
orbits around its red dwarf star faster
than you can finish a pizza finishing a
complete Loop every 38 hours but it's
not just the planet size or orbit that's
out of this world it's pretty hot out
there with mind melting
450° F but the coolest thing is that
this planet is practically drowning in
water the sizzling temperatures and
crazy high pressures on
gj1214b
create some super cool materials like
hot ice and super fluid water super
fluidity is something that happens in
liquid helium when it's almost as cold
as it can get on earth water totally
missed the memo on being superf fluid
because it needs ridiculously low
temperatures and off thee chart
pressures to pull off that trick still
there's not much use in superf fluid
water even if you try it you'll just get
dehydrated have you ever wondered why
all planets are perfectly Round And what
if these celestial bodies decided to
break the rules and change their shape
would we end up with square planets
triangular moons or maybe even
Intergalactic shapes we can't even
imagine well let's find out so how do
planets form in the first place the
universe is filled with swirling clouds
of dust and gas these clouds called
molecular clouds consist of various
elements and compounds such as hydrogen
helium carbon oxygen and so on they're
like a cosmic kitchen filled with the
ingredients needed to cook up some brand
new
planets the first step in the recipe for
planetary formation is called the
accretion theory let's say that
something happens that causes
gravitational instability like a
supernova goes off nearby or something
this pushes the gas and dust in the
cloud and causes them to come together
because of gravity these particles start
falling toward a central point they
become more tightly packed together like
when you squeeze a ball in your hand and
eventually they squeeze so hard that the
cloud starts to flatten into a disc
shape kind of like when you mix flour
and water to make pizza
dough this disc is called a
protoplanetary disc it's also spinning
because the Cloud's particles had some
rotation to begin with now imagine these
tiny dust particles and gas molecules
dancing around in the disc sometimes
they bump into each other and when they
do they stick together like
velcro these little clumps of dust and
gas are called planetesimals they're the
building blocks of planets and as the
planetesimals continued to collide and
merge they grew larger and larger
forming
protoplanets the protoplanets were
getting serious about their size and
their gravity became stronger some of
them got so massive that they became the
grand masters of their Cosmic
neighborhoods the planets we know and
love each planet had its own unique
recipe of gases rocks and sometimes even
water but why do the planets look like
spheres well it's all because of
gravity let's go back to our
protoplanets imagine you're squeezing a
balloon with your hands the air inside
of the balloon pushes back creating
pressure something similar happens with
planets gravity squeezes its material
inward pull pull in towards the center
and since gravity acts equally in all
directions it pulls material from all
sides toward the center of mass
resulting in a sphere-like
shape and that material pushes back with
pressure resisting the force of gravity
in the end they both find a sweet spot
where they balance each other out it's
called hydrostatic equilibrium a fancy
term that means everything inside a
planet is in Balance but that's not all
another thing that makes the planet
spherical is their rotation think about
a ball of PlayDoh or something like that
imagine you spin it rapidly the material
starts to push outward making the
Playdoh bulge at the equator and flatten
at the
poles the same thing happens to planets
as they spin on their axis the
combination of gravity and rotation
pushes the material outward making the
planet bulge at the equator they lowkey
want to become discs again however
gravity doesn't want any lumpy planets
it wants them to be nice nice and round
so it keeps pulling on the material
trying to make everything as compact as
possible eventually gravity wins and the
planet settles into a spherical
shape let's take some examples from our
planetary playlist Jupiter the giant of
the solar system loves to show off its
oblateness it spins so fast that it
becomes noticeably squished at the poles
and chubby in the middle it's like a
spinning top with a cute belly Saturn
the ringed Wonder also joins the oblate
party it spins around with its beautiful
rings and its oblateness is even more
pronounced than
Jupiter's these examples show how
rotation can give planets a unique shape
they go from being perfectly round to
having a delightful bulge around the
middle it's like Cosmic Pottery where
the spinning motion creates a playful
and distinct shape so now you know why
the planets are round but what's more
interesting is what if they weren't what
if they were let's say cubicle or even
triangular well let's see
a cube-shaped or a triangle-shaped
planet would have its mass spread out in
a completely different way than a sphere
and you know what that means gravity
would be All Shook Up Too on a spherical
Planet gravity pulls everything towards
the center because the mass is evenly
distributed around that Center but when
we introduce a cube-shaped or
triangle-shaped Planet things get
interesting if you're standing at the
center of one of those faces you'd feel
the strongest pull of gravity that's
because the faces are the Clos closest
to the center of gravity and as you
venture away from the center and start
walking towards the edges gravity starts
playing tricks on you you would feel the
struggle against the Steep angled
gravity walking on those edges would
feel just like climbing a mountain or
walking on a super steep slope all
because gravity wants you right in the
middle of the face and nowhere
else now imagine the terrain along the
edges and Corners it's a Barren Rocky
and dry landscape
why well all the water would pull in at
the center of each face leaving the
edges high and dry and the air quality
well it's either non-existent or so thin
that it can't support life not the
coziest place to set up camp that's for
sure and don't forget your warm clothes
lunch and hiking boots you'll need them
because of the crazy
climate the type of climate you'll
encounter on our Cube or triangle shaped
Earth depends on how it spins if it
rotates at its Corners each side would
enjoy a mild temperate clim climate
however if it rotates on an axis through
two of its faces things get intense
picture a roller coaster version of our
current climate some faces would be
polar wonderlands icy and chilly the top
and bottom faces for the cube and the
bottom face for the triangle meanwhile
the other sides would be completely
different in a cube they would be
scorching hot with an equatorial climate
that would make you break a sweat
instead of sunlight gently curving along
the surface it would directly beam onto
these faces talk about feeling the
Heat and on a triangular Planet the
sunlight would strike the faces at an
angle this angled sunlight would create
fascinating temperature variations
across the
planet imagine this as you move from the
base of the triangle towards the tip the
temperatures would gradually decrease
the base where the sunlight hits most
directly would be the hottest region
just like the equatorial climate we're
familiar with on our spherical Earth but
as Venture towards the tip the angle of
sunlight would be less direct leading to
cooler temperatures but the base is
still super cold and dark since the
sunlight doesn't directly reach it so
the triangle would be absolutely crazy
in terms of temperature changes in
climate
zones by the way you know that cozy
blanket of air we call the atmosphere
well on our angular Earth things would
get a little Topsy Turvy gravity would
be pulling stronger from the center of
each face the result the atmosphere
would go through some crazy Chang es
picture this at the center of each face
where gravity is strongest the
atmosphere would gather and thicken it
would be like a bustling City full of
air molecules but as you venture towards
the edges things would start to thin out
the atmosphere would become scarce and
very thin so breathing along the edges
would be quite a challenge and the edges
would be a tough neighborhood for life
to thrive moreover a thinner atmosphere
means less protection from the sun's
radiation and solar winds so corners and
edges would be extreme extr dangerous
for humans of course this is all just a
playful exploration of what could be our
Earth loves its spherical shape and
that's a good thing but there's no harm
in imagining wild and wonderful
possibilities so keep your imagination
soaring and continue to Marvel at the
marvels of our amazing planet however it
may be shaped now space missions used to
be this big deal but now they're
starting to feel like a walk in the park
but there's a catch our bodies aren't
exactly built for surviving on other
planets now I know what you're thinking
our bodies will eventually adapt and
evolve right well yeah evolution is
always on the clock but let's be real
here it's not going to happen overnight
we're not talking about a cool million
years for some changes to kick in and
honestly who's got the time for that so
how about tweaking our genes just a
little bit to make living on other
planets easier genetic modifications are
all about changing an organism's genetic
material like its DNA to give it some
cool new traits or characteristics now
picture this scientists could totally
mess around with our genes to make us
more resistant to Crazy temperature you
know like the temperature fluctuations
of the Moon minus
298° F at night to 224° F daytime wow
they might even figure out a way to make
us super tough against radiation which
is a huge deal in space or on planets
with weak atmospheres we definitely
don't want to get fried out out there oh
and here's another thing they could do
tackle the effects of low gravity
spending too much time in Low Gravity
can really mess up our muscles bones and
even our heart but if they tweak those
genes related to muscle and bone growth
we could become super strong and
resistant to all those nasty effects
however it's not as simple as it might
seem the technology for safe and precise
genetic modifications is still in its
early stages so it might even take as
much time as it would for our bodies to
naturally evolve and adapt to other
planets there are a couple of nice
exoplanets where Humanity might
potentially live I'm talking about gley
667 CC Kepler 442b Kepler 62e Kepler
452b gley 837 you name it in fact I'm
sure you can do a better job of naming
than these now consider gley
667cc um in fact let's nickname this one
Gary for short turns out that Gary gets
about 90% of the light that Earth does
but instead of regular visible light
this planet mostly gets infrared light
to put it simpler Gary is rocking only
20% of the visible light that Earth gets
yep it's a bit darker over there so do
we need really warm clothes and night
vision goggles to thrive on this planet
nah not really in addition to Darkness
Gary is estimated to have a higher mass
than Earth meaning it likely has a
stronger gravitational pull to adapt
humans would need to hit the gym at
least twice a day translation humans
would need to develop stronger muscles
and Bones to withstand the increased
gravity over Generations natural
selection might favor individuals with
these adaptations we still know too
little about these exoplanets to move
there anytime soon hey how about some
planets in our solar system let's
discover our top picks this way we can
easily figure out what changes we need
to make so first things first let's
eliminate the two ice giants in our
solar system and their friends yep
Neptune Uranus and the two gas giants
Saturn and Jupiter sorry guys but
terraforming you is just not going to
happen even so we still have four super
cool candidates right here in our solar
system you all know them well Venus and
Mars the popular Kids on the Block and
then we have Jupiter's moon Kalisto and
Saturn's moon Titan they might not be as
famous but they've got some serious
potential to become Earth 2.0 so it
turns out some of Jupiter's moons are
super cool for terraforming they're
packed with water which is a big plus
but here's the catch only Kalisto is far
enough from Jupiter's radiation belts
you see on Earth we get hit with about
.24 Rems of radiation per year but for
instance ganim another of Jupiter's
moons gives away a whopping eight Rams
per day just to make it clear
professional workers here on Earth can
have more than five Ram per year Kalisto
is different though we don't need to
tweak our genes as it only gets about
0.01 RMS per day which we humans can
totally handle now let's not get too
carried away with the idea that life on
Kalisto is all sunshine and beaches like
in California nope it's more like an icy
Wonderland out there so if you ever find
yourself on Kalisto make sure to pack
your snazziest protective clothing and
some high-tech heating systems honestly
at this point we might as well wish for
evolution to take us back to our furry
animal days I mean think about it our
ancestors were rocking some serious fur
game just like those cool chimps and
gorillas But as time went on and we got
all fancy with our Evolution we decided
to ditch the fur coat and go for a more
minimalist look now why did we lose our
fur that's a question that has puzzled
scientists for ages Darwin thought it
was about finding less hairy mates While
others believed it was to keep those
pesky lice away but these days most
researchers think it all comes down to
staying cool picture this our ancestors
were string their stuff on open dry
lands after they learned to walk on two
legs think of a patchy forest or a sunny
Savannah instead of a lush rainforest in
that kind of environment overheating was
a real threat so we evolve to have less
body hair and more sweat glands to help
us cool down by sweating like crazy now
Titan the moon of Saturn is like a
treasure chest of resources just waiting
to be cracked open we're talking
hydrocarbon reserves that make Earths
look like a kids play with petroleum for
days plus it's got all sorts of organic
compounds like methane ammonia and water
and don't forget its atmosphere is a
nitrogen party just like early herbs
here's where it gets really interesting
if Titan's atmosphere is similar to what
Earth used to be we could totally
transform it into a modern earthlike
atmosphere picture this giant mirrors in
space beaming sunlight onto Titan
surface heating things up and releasing
water vapor oxygenated atmosphere coming
right up and to top it off Titan hangs
out within Saturn's magnetosphere so it
shielded from those pesky solar winds
now Titan's gravity is about 17th that
of Earth which could lead to muscle and
bone deterioration over time to
counteract that our bodies would need to
develop stronger muscles and denser
bones to withstand the lower gravity
seems like Earth is the only place where
we can't skip gym without gravitational
consequences now when it comes to being
the hottest planet Mercury may be the
Sun's next door neighbor but Venus takes
the crown the temperature there is a
scorching 870 de F on average it's like
trying to survive in a pot of boiling
water or in the fiery depths of Venus
itself I guess the richest people out
there would be those selling sunscreens
and ice cream sorry folks no amount of
evolution can turn us into superhumans
who can handle Venus's extreme
conditions the only beings that
theoretically could possibly Thrive
there are tardigrades these tiny cute
little critters that look like
caterpillars and have some seriously
impressive toughness they can survive
boiling water the darkest depths of the
ocean and even the freezing airless
emptiness of space in fact they were
part of a scientific study on a
spacecraft that unfortunately crashed on
the moon still Recent research proves
that even these guys won't survive on
Venus now look at this guy he's been
kicking it on Mars for ages which
explains why he's rocking the wrong
shade of self-tan turns out all those
carrot loving catenoids in his diet like
sweet potatoes bell peppers tomatoes and
pumpkins are the es up his sleeve
protecting him against UV rays the more
he munches on those the more he turns
into a walking orange and let me tell
you the strength it's all about that
Martian gravity my friend the gravity
there messes with our perception of
weight so if you want to be a boss on
Mars you got to Chow Down big time like
if you weigh 150 lbs on Earth it feels
like you're carrying no more than 55 lbs
on Mars so overindulging in food can
totally help bridge that Gap between
gravity and weight o time to Feast like
a martian have you ever thought about
Earth itself as an intelligent well not
creature but maybe an entity like it has
a mind and some survival instincts of
its own when said like this it sounds
like you're about to watch a fantasy
movie where the planet we walk and live
our daily lives on will suddenly wake up
realize it doesn't like us that much
after all and just go crazy hope not but
we're not actually talking about such
scenarios more of the idea that the
collective activity of life like
microbes and plants can change a planet
and give it a life of its own it's like
the planet has a green
mind the metaphor of Earth as a living
planet makes sense creatures across the
globe crawl swim walk and fly through
the uppermost layers of Our Land Ocean
and Sky plants cover much of our work
world plus there are viruses and
bacteria in the water soil and even
atmosphere now imagine all the living
things on earth like plants animals and
microbes as a giant team working
together they have different jobs but
they all do their thing to make the
planet a better place to live for
example plants make oxygen that we
breathe and animals help pollinate
flowers together they form the biosphere
which is like the Earth's team of
life that's where the idea of planetary
intelligence comes in just like
individuals and groups can be
intelligent so can an entire planet
researchers believe we should measure
the planet's intelligence by its ability
to keep itself going forever and just
like how humans need to work together to
survive a planet's collective
intelligence is measured by the capacity
of all the life on it to work together
towards this same goal it's like the
planet is a complex system that knows
how to take care of itself like forests
they can share nutrients through their
secret underground networks of fungi
this helps all the trees stay healthy we
can obviously learn a lot from
forests if we jump into the fantasy
Universe while looking for intelligent
conscious planets we definitely choose
MoGo from Green Lantern it's a specific
planetary entity that can do things like
changing its weather and altering
gravity plant growth or some other
surface conditions or how about the
stunning Pandora from Avatar do you
remember the fascinating scenes of Flora
and Fauna there with organs that might
remind you of tentacles they enable
creatures to Interlink with each other
on a neural level it's like the entire
planet is like one giant brain with many
smaller trees creatures and its other
pieces as its
cells we're far from from that but it's
still nice to imagine at the moment our
civilization is in the stage scientists
named an immature technosphere that
means we're still too focused on using
technology that doesn't always do good
for our planet we don't have a planetary
intelligence or a collective
understanding of what needs to be done
to do better for our planet instead
we're all just doing our own thing I
mean we're not at the worst stage
researchers have come up with four
stages of Earth's past and future to
explain how planetary intelligence could
impact the long-term future of humanity
the first stage is what we call the
immature biosphere it's when life first
started on Earth billions of years ago
only microbes were there on the bare
land without any vegetation there wasn't
any Global feedback which means these
microbes couldn't yet affect Earth its
atmosphere or other systems in any way
the second stage is the mature biosphere
which was 2.5 billion to 540 million
years ago when stable continents formed
and the biosphere started to have a
strong influence on the earth the third
stage known as immature technosphere is
where we are now with interl systems of
communication technology Transportation
electricity and computers that draw
resources from Earth's systems and
affect the biosphere the fourth stage
also known as the mature technosphere is
where Earth should aim to be in the
future it means technology will benefit
the entire planet we'll use sustainable
forms of energy like solar power
planetary intelligence is the sign of a
mature planet and researchers are trying
to figure out how we can move towards
it so things we do on an individual
level do matter the collective activity
of life like microbes or plants can
change a planet and make it more than
just a lifeless rock floating in
space through the biosphere our home
planet kind of figured out how to host
Life by itself billions of years ago and
it's still going now we need to figure
out how to have a similar kind of
self-maintaining system but this time
with the
technosphere it's hard to imagine
planets could generally become sensient
like Pandora or some other imaginary
conscious world out there there are a
few reasons for that first planets form
based on how different materials like
rocks gases and liquids gather around a
new star it's like you have a big family
gathering where everyone brings
different ingredients to make a
delicious dish and just like how these
ingredients won't suddenly turn into a
living being the materials that make up
a planet won't just turn into self-aware
creatures on Earth after billions of
years of complex chemical reactions some
molecules started to replicate
themselves and carry information that's
how life on our planet began and Earth
is the only such example we
have here's the second reason imagine
you have a big Garden where you plant a
lot of mushrooms or bacteria hoping
they'll become really smart and help you
take care of the garden but mushrooms
and bacteria don't have brains like we
do eh it's not like they need it
anyway having a big brain is really
expensive for animals too it takes a lot
of energy to keep it running so animals
only become as smart as they need to be
to survive and thrive in their
environment dogs and cats are pretty
smart because they need to be able to
avoid danger and find food they don't
need human kind of intelligence for
things like building houses creating art
or inventing new technologies so it
would be hard to bring all living beings
and plants to the same level of
intelligence the third reason why it
would be difficult for a planet to
become sensient is the main rule of the
animal kingdom life is all about
survival of the fittest every creature
is competing for resources like water
food and space but not only do different
species compete against each other but
individuals within the same species also
fight just think of how fiddler crabs
fight for territory on the beach or how
wolf packs fight over prey or me when I
see an empty spot on a crowd Ed Beach
this kind of competition is not a good
base for Global
cooperation there are a couple of
exceptions to this rule for example ants
they may not be the brightest creatures
on the planet but when they come
together in colonies they can achieve
amazing things like Gathering food
that's way bigger than them building
nests raising Young And even farming in
fact they act like a super organism
called a hive mind where every ant works
together towards a common
goal insects like bees and ants are very
altruistic and work together to ensure
their Queen reproduces if one large ant
colony took over our whole planet it
could act as a single mind and work
towards the colonies and planets
interests until they run out of
resources but in reality it's hard to
imagine any organism even a
superorganism could reach such a level
of self-awareness and consciousness
number five how could we keep in
contact when it comes to communication
ants use pheromones and humans use
nerves both of these methods work well
for small organisms but when it comes to
a giant planet sized entity it would be
hard to make such communication fast and
efficient so communication within a
planet-sized entity would be much slower
than what we have in our homes like our
computers or
smartphones oh well we'll just continue
dreaming about
Pandora ah consider the Rogue Planet the
cosmic Wanderer that nobody wants to
take home basically a rogue planet is a
planet that has been ejected from its
own star system and is now floating
aimlessly through space like a cosmic
loner these planets aren't just a theory
scientists have actually detected some
in our galaxy in fact estimates suggest
that there may be l lots of these Cosmic
Nomads floating around the Milky Way and
they aren't just small rocky worlds like
Earth some of them are actually massive
gas giants many times larger than
Jupiter these behemoths could
potentially have their own moons and
even their own Min systems orbiting
around them for example one of the most
famous rogue planets we know of has a
complicated name here you read it for
yourself it's located about 80 light
years away from Earth and it was
discovered in
2013 this Rogue planet is estimated to
be around six times the mass of Jupiter
and is believed to be around 12 million
years old and yes just because these
Cosmic loners don't have a star it
doesn't mean they're super cold they can
still generate heat and light from their
own internal processes some may even
have magnetic fields and auroras just
like Earth in other words rogue planets
could potentially be habitable if they
have the right conditions so what would
life on such a planet look like and
could we potentially live in such a
world well living on a rogue planet can
be a lonely existence they have no warm
sun to bask in no cozy atmosphere to
cuddle up in and no Cosmic neighbors to
have barbecue with that's why we'd have
to get creative let's start with the
most obvious problem we'd have a hard
time without light and heat so how do we
fix this Well we'd probably have to
invest in some really fancy space
heaters and wear fashionable superwarm
space suits or we could invent a whole
new way to generate electricity without
relying on solar power for example how
about using geothermal energy now that's
hot stuff each planet has an internal
source of heat without it they would all
be nothing more than cold lifeless rocks
floating through space this internal
heat can be harnessed and used to power
everything from homes to factories to
spaceships it's like having a hot tub
big enough to power an entire city and
that City most likely will be located
underground closer to the heat source
and as for light Well we'd probably have
to build some really bright flashlights
or maybe even learn to genetically
engineer some bioluminescent organisms
to light up our homes just imagine space
bases overgrown with neon mushrooms and
plants by the way speaking of plants
plant life would be pretty hard to come
by without a star so what would we eat
well we could use the same geothermal
vents that we talked about or some
chemical reactions to sustain ourselves
and hey maybe we'd develop a taste for
sulfur rich foods or we'd start
fermenting our own drinks from the
bubbling volcanic mud yum but besides
food we have a more important problem
living on Rogue Planet would be
breathtaking literally we'd have no air
you see not all rogue planets have good
stable atmospheres it all depends on
their size composition and other things
but even if our new home does have an
atmosphere it may be incredibly thin and
unstable we'd have no pretty blue skies
or dramatic sunsets to admire instead
we'd be staring out into the infinite
void of space where the stars would be
brighter than ever before
and forget about weather patterns
without an atmosphere to create them
we'd have no rain no snow and no
thunderstorms and that's just some minor
problems what's worse the temperature on
the planet would be wildly fluctuating
swinging from unbearable heat to
unbearable cold it would be like living
in an oven that's always being turned on
and off and finally we'd be exposed to
all kinds of space debris and Cosmic
radiation so if you don't want to get
crispy you might want to invest in some
serious
SPF so how do we fix it Well we'd have
to find a way to generate our own oxygen
and probably create something like a
space age biosphere for example we could
grow some plants that could produce
oxygen or we'd learn to filter the air
like a high-tech air
purifier finally we have the last most
important problem finding water and
here's where the underwater oceans come
to our Aid now we're really diving deep
into the possibilities yuu but seriously
scientists suggest that some of these
planets May indeed have underwater
oceans it would be like living on a
giant water balloon that's been buried
underground with the ground beneath your
feet made of ice and rock in other words
we could just tap into these underground
oceans they could provide us with a
source of water for drinking farming and
Manufacturing maybe even with some other
resources and materials we've never seen
for and by the way who knows what kind
of strange creatures might be lurking in
those underground Seas but don't worry
even if we don't have any underground
Oasis there are also other options we
could get some water from comets ice
Mining and even from the atmosphere the
one we just created before finally we
need to find and mine some resources to
build our homes and other stuff and a
rogue Planet might not have the same
kinds of resources as a planet that
orbits a star it's like trying to find
some Treasures in a desert not exactly a
sure thing we may have to rely on
resources from nearby asteroids and
things like that and if we want to
extract resources from the planet itself
we might need to drill down through
miles of ice and rock but hey if you're
up for the challenge there'll always be
a chance you'll strike it rich on a
rogue planet and who knows maybe you'll
discover some new resources that are
even more valuable than gold or diamonds
Great Looks like we've solved the most
important problems now there may be
other small difficulties for example
we'd also have to deal with some
seriously long days and nights depending
on how fast our planet was rotating and
we wouldn't have a normal regular day
night cycle the rotation of our planet
could be wildly unpredictable maybe we'd
have weeks long nights followed by weeks
long days which could really mess with
our sleep schedule
we might have to develop some really
strong coffee to keep us going through
those long dark nights but
hypothetically we can adapt to all these
things and overcome all the challenges
and now finally welcome to the Rogue
planet where the Sun never Rises but the
adventures Never End thanks to our
advanced technology we've managed to
create a comfortable and habitable
environment in this once Barren world
the sky above us is now a beautiful
shade of blue filled with fluffy white
clouds and the occasional flock of
flying creatures don't ask as we venture
out from our underground habitats we're
greeted by a world that's full of
surprises strange plants and animals
have adapted to the unique conditions of
this planet some with bioluminescent
features that glow in the dark and be
careful if you want to go swimming in
the underground ocean they might be home
to some bizarre creatures who want to
Feast on well we'll come back to that H
maybe as you can see we've created
sprawling cities and thriving
communities powered by the planet's
geothermal energy we also created a
bunch of artificial light sources that
keep things bright throughout the dark
chilly nights of course we still have
some problems with navigation and
timekeeping but things aren't as dull as
they used to be are they overall living
on a rogue Planet would definitely have
its challenges but it could also be a
pretty exciting way to experience the
universe and who knows maybe someday
we'll find such a planet and actually
turn it into a bustling Intergalactic
Metropolis someday but until then let's
enjoy and tidy up our dear
Earth have you ever wondered what it
would be like if every planet in our
solar system was the size of Earth well
it's time to dive into this mindboggling
scenario let's imagine what each planet
would look like if they were as big as
our beloved blue planet with the barren
red landscape of Mars suddenly become a
lush green Oasis with the massive
swirling gas giant Jupiter just
disappear and how would it affect our
solar system as a whole are we all
doomed buckle up and let's find
out the first planet on our list is
Mercury the smallest planet in our solar
system but now forget about the moonlike
Mercury instead picture yourself on the
surface of a super dnamic incandescent
Inferno there are a lot of craters and
active volcanoes around you and right in
front of you is a huge blinding bright
Sun what a nightmare but let's break
these changes down well along with the
size of mercury both its mass and
gravity would increase in that case it's
possible that mercury would have more
atmosphere temperatures on Mercury are
extreme not only because it's very close
to the Sun
but also because of its very thin
atmosphere so during the day the
temperatures there reach 800° F and at
night it becomes terrifyingly cold down
to -
290°
F but now when the gravity is stronger
Mercury could have a denser atmosphere
so the heat would be better distributed
across the
planet and the atmosphere isn't the only
thing that could make it hotter if
Mercury became bigger it it would likely
experience increased internal heating
due to gravitational compression and
hypothetically its tectonic activity
could increase in other words more
interesting landscape more Mountains and
more scary active
volcanoes congratulations you've turned
mercury into Venus 2.0 for us all these
changes wouldn't be very pleasant now it
would become much harder to send our
spacecraft there so it's better for
Mercury to stay as it is small calm and
boring basically the complete opposite
of our next planet
Venus so what would happen to Venus if
it was
earth-sized actually nothing it wouldn't
change at all all because Venus is
already almost the size of Earth it's
even called the Earth's twin although
twin is a big word of course in reality
we couldn't be more different Venus is
often called The Morning Star because
it's so bright and visible in the sky
but don't let its beauty fool you this
planet is one of the most inhospitable
places in our solar system its surface
is hotter than a freshly baked pizza
around 900° F and it's covered in thick
clouds of sulfuric acid that would
dissolve any human who tried to visit so
unfortunately you won't be planning any
trips there anytime soon so let's move
on to a planet that unlike Venus could
potentially become a new home for us
Mars picture yourself standing on Mars's
surface watching the blue Sunset and
breathing in a refreshing Breeze of air
yes you read that right air moreover you
could be surrounded by plants animals
and basically feel like you're on Earth
but how is that possible bigger Mars
would have a stronger magnetic field and
gravity this would lead to a richer and
denser atmosphere it would likely have a
wider range of gases including oxygen
wouldn't that be
cool also a denser atmosphere could
distribute heat across the planet so
Mars would become much warmer and Cozier
and here comes the most important change
liquid water Mars actually has some
frozen water at its poles and in
subsurface reservoirs but with a
stronger gravitational pull it could
potentially stabilize liquid water on
its surface
hooray however it's not all fun and
games new Mars would also have a
volcanic personality it's already
geologically active but now its internal
heat and pressure would
Skyrocket that means more frequent and
more crazy volcanic eruptions imagine
how exciting it would be to witness such
eruptions on another planet if you
manage to escape the
consequences in general the planet could
become Greener and Lusher but not safer
although it would still be great to see
it
but it's time to move on to the Giants
of our solar system and if we're
enlarging the planets before now it's
time to squeeze them really really hard
if Jupiter became 11 times smaller oh
boy what a disaster that would be the
first thing we'd notice is a change in
gravity and I say we'd notice because
now we'd have no choice but to move
somewhere Jupiter experiences from 30 to
100 collisions with large asteroids per
year
no big deal all because of its strongest
gravity which attracts them all and
protects us but now our big protective
brother has turned into a small baby say
hi to a bunch of
asteroids oh and say bye-bye to Jupiter
this planet is known for its thick
swirling atmosphere but with a weaker
gravitational pull Jupiter would
probably have a hard time holding onto
it so over time it would slowly Escape
into space leaving behind a thin
atmosphere composed mainly of nitrogen
and
oxygen we'll also have to bid farewell
to the iconic appearance of another
giant Saturn the most noticeable
difference would be The Disappearance of
its famous rings made up of small
particles of ice and rock the Rings are
a unique feature of Saturn but with
Earth's gravity they would either fall
onto the planet or scatter into space
bummer Saturn is also a gas giant just
like Jupiter its atmosphere is made up
of mostly hydrogen and helium but if it
were earth-sized its gases would be
compressed due to the increased gravity
this would make it much denser that
means Saturn's overall size and shape
would change theoretically if we squeeze
Saturn hard it could potentially become
a brown dwarf it's a type of failed star
that lacks the mass to sustain nuclear
fusion but emits heat and light so
Saturn could stop being a planet
altogether the weather on it would
probably have changed too all its crazy
storms such as the famous hexagonal
storm at its North Pole would have
become weaker and
calmer the next giant is Uranus let's
try to compress this Pella first off the
surface gravity on Uranus would be much
weaker than it is now its atmosphere
might also change if Uranus was smaller
it could have a thinner atmosphere and
different gases Al together this planet
is pretty chilly with an average
temperature of -3 53°
F but if it was the size of Earth it
might actually warm up a bit due to its
reduced volume to surface area ratio
don't get too excited though it would
still be way colder than the coldest
spots on Earth as you can see gas giants
don't easily go through all this
shrinking except perhaps one of them
surprisingly small Neptune would become
much friendlier for starters it would
probably be a rocky planet with a tiny
atmosphere that means no more gas giant
but instead a planet that's easier for
humans and critters alike to live and
move around on speaking of movement
because of the smaller size the gravity
on this new Neptune would be almost the
same as Earth's making it a heck of a
lot easier to walk and jump around no
more floating away into space now now
the atmosphere of the original Neptune
is so thick you could barely see your
hand in front of your face and the
surface pressure is about 100 times that
of Earth's atmosphere but our new
Neptune would be much different with a
much thinner and less dense atmosphere
it would still have some methane water
and ammonia in it but nowhere near as
much as before finally the
temperature the current Neptune is
freezing with an average temperature of
about3
70° F but if it was the same size as
Earth it would likely be much warmer
just like Uranus Ah that's more like it
what a planet that would be that's it
for the changes in the planets but what
would happen to the entire solar system
if we made all the planets so small it's
hard to predict but it's clear that
their gravity and orbits could change a
lot it's unlikely that any of them would
have flown into outer space or crashed
into each other or something like that
but many many of their orbits would
probably become quite unstable and the
number of collisions with asteroids
would have increased
significantly of course all this is
purely speculation it's not like we can
actually test all this but it's still a
pretty interesting thought experiment
and it makes you appreciate just how
unique and special our solar system
really is as scientists continue to
explore the vast expans of the universe
they've made some incredible discoveries
that have left them with more questions
and answers from a scorching superar to
a football-shaped world the exoplanet
discoveries of 2022 are truly out of
this world so hold on tight the future
of exoplanet discoveries is looking
brighter than ever number one new type
of exoplanets red dwarfs make up over
70% of all stars in space so in
September of 20202 scientists decided to
take a closer look at the small worlds
orbiting them what they found was
amazing new type of exoplanets that were
made of half Rock and half water either
in liquid or ice form the researchers
suggested that these planets likely
arose from Icy material and were born
far away from their Stars past the ice
line where surface temperatures are
freezing but they later migrated closer
in to where the astronomers detected
them this discovery could have huge
implications in the search for life in
the cosmos though these planets are are
loaded with water they might not be
covered in oceans who knows maybe one of
them will be the next Earth
2.0 number two Jupiter siiz World
Imagine a planet so massive and
mysterious it's like a hidden Jupiter in
our galaxy well we just discovered one
of those orbiting a star just 379 Lighty
years away just we've named it the toi
280b and it's got everyone talking why
well for starters this planet takes a
whopping 261 days to orbit its star
which is much longer than most distant
gas giants we've come across so far but
that's not all the temperature on this
world is surprisingly mild averaging at
a b 170° f for comparison the
temperature on Jupiter and Saturn is
aroundus
280° it's like a bridge between the
giant exoplanets we found and our
Jupiter but the question remains how did
this planet get to be so different
scientists are still trying to figure
that out let's hope that we get some
answers soon number three the Hulk
Planet this world is a place where the
surface is covered in molten magma and
the year lasts just half a day welcome
to toi
1075b an exoplanet that's been dubbed
the planet Hulk by scientists located
200 light years away this super Earth is
one of the most massive massive ever
discovered its proximity to its parent
star causes its surface to reach
scorching temperatures of 19 122° it's
so hot that any form of water would
evaporate instantly and the air would be
filled with vaporized Rock but it's not
just the heat that's impressive it's
also its size toi
1075b is nearly 10 times the mass of
Earth making it one of the most massive
super Earths ever discovered but the
mystery doesn't stop there the planet's
orbit takes just 14 1/2 hours making it
one of the shortest orbital periods ever
recorded for a planet of its on what an
exciting addition to our catalog number
four three doomed planets astronomers
made a shocking discovery of three
planets that are circling in a dangerous
dance next to the slowly fading Stars
just a decade ago scientists never even
imagined such planets could exist these
gas giant planets similar in size to
Jupiter orbit way too close to their
slowly fading Stars they're basically
Walking On The Edge take one of them for
example dub toi 2337 B its orbit will
likely send it hurling straight into the
fiery arms of its host star in less than
a million years well I won't be around
that as these Stars enter their final
days they're pulling in nearby planets
like a black hole altering their orbit
and potentially causing catastrophic
collisions and as these planets get
closer to their Stars their atmospheres
heat up and swell leading to some
mindboggling differences in density but
despite the Doom and Gloom studying
these worlds could give us valuable
insights into the evolution of our own
solar system number five planet with a
bariums atmosphere these are two hot
blazing planets each with an atmosphere
made of the heaviest element ever found
in an exoplanet barium these planets
known as ws 76b and wa 121b are Ultra
hot gas giants called super Jupiters
that orbit incredibly close to their
Stars these planets are basically like
giant balls of fire with one side facing
the star cooking at temperatures hot
enough to vaporize iron and other metals
but as the hot iron vapor is blown into
the planet's cooler night side it turns
into liquid and falls as iron rain and
these planets held a special surprise
for us barium is a heavy metal about 2
and 1/2 times as heavy as iron and yet
scientists were able to detect it in the
upper layers of these planets
atmospheres this is truly a mystery and
a puzzle we're still trying to solve
imagine landing on a planet like this
and looking at this rain of iron and the
heavy barium in its Skies that would be
awesomely
horrifying number six the foot football
Planet get ready to have your mind blown
space enthusiasts because we've just
discovered the ultimate football shaped
planet and it's unlike anything we've
ever seen before meet wasp 103b the
ultra hot exoplanet that's more than a
thousand light years away from Earth
this gas giant is so close to its parent
star that its shape is being stretched
by the intense gravitational forces but
this isn't just a fun Shape Shifter it's
also a valuable scientific discovery by
studying the planet's passes across its
star we were able to measure its
deformation for the first time ever it's
like taking a snapshot of a planet in
motion and it's giving us insights into
the extreme conditions that these
planets can endure this is truly a great
discovery number seven a zodiacal light
are you ready for a cosmic ghost story
scientists and high school students in
China have uncovered a spooky phenomenon
on three distant exoplanets it's called
zodiacal life a glow that's similar to
the one seen here on Earth during sunset
but this isn't just some Eerie light
show it could hold clues about the
makeup of these potentially habitable
worlds imagine watching the sunset from
a dark spot on earth and instead of
Darkness a triangle of light appears
that's zodial light it's caused by
sunlight reflecting off dust particles
that fill the solar system the remain
CHS of asteroids and comets a team of
researchers analyzed 47 potential
habitable exoplanets named Kepler 69c
Kepler 1229b and Kepler
395c all super Earths had signs of this
L this discovery is more than just a
spooky phenomenon it could reveal
information about the presence of
asteroids and comets in these exoplanet
systems which could be difficult to
detect otherwise so that's pretty neat
number eight a planet with silicate
clouds introducing VHS
129b not a home video recording system
but a strange and exotic World shrouded
in mystery and wonder a place where the
clouds are made of sand and the sky is
forever red this isn't the stuff of
Science Fiction but a real life
discovery made by the Brilliant Minds at
Nasa this is a brown dwarf exoplanet
that's making waves in the astronomical
community
it's way too massive for a planet nearly
20 times the size of Jupiter but it's
not quite a star it's something in
between a cosmic Enigma that defies
definition but what's really crazy about
VHS 1256b is its atmosphere scientists
have discovered that the strange world
is cloaked in thick clouds of silicate
grains similar to sand it's the first
time this kind of cloud has ever been
detected on an exoplanet and it's a
discovery that's sure to change the way
we think about the universe and the
possibilities of life beyond our world
and there you have it folks the year
2022 was filled with Incredible
discoveries and groundbreaking findings
in the world of exoplanets but this is
just the beginning as scientists and
researchers continue to explore the vast
expanse of space we can only imagine
what other wonders await us so let's
keep looking who knows what Secrets the
star hold for us
next okay here you are in the middle of
the ocean it's endless but you can't see
it because there's a thick fog all
around you dense clouds hide the huge
but dim sun is it day or night you don't
know there's only a gray haze around you
you're alone even if you try to swim
down after several hours you still won't
be able to see the bottom of the ocean
and that's a typical water planet for
you
I know sounded kind of dark but it's not
that bad these water worlds are more
interesting than they may seem so let's
take a look at them the ocean planet is
a planet that consists as you might have
guessed mainly of water ice and maybe
some rocks think of the Earth's oceans
its horrifying depths the Mariana Trench
and all that and now can you guess how
much space all the water on Earth takes
up
0.025% exactly now just try to imagine a
world of 40 to 60% water if you dive in
there the depth can exceed 60 miles
compared to that the 6m depth of our
Mariana Trench sounds like nothing and
yeah the pressure there will be enormous
it can reach up to 20,000 Earth
atmospheres very crushing now it may
sound scary but it still would be great
to find out more about these planets
fortunately according to scientist
calculations there may be a lot of such
planets in our galaxy alone well you
don't have to go far you can find these
water guys even in our solar system not
planets of course but moons Jupiter has
ganim and Kalisto and Saturn has Titan
and Enceladus the ocean can reach up to
30% of the mass of these moons although
it isn't clear whether these oceans are
covered with a thick crust of ice but
we've discovered quite a few
full-fledged ocean planets this is
because the conditions in which these
planets may exist are very specific for
example this planet should be somewhere
6 to 8 times larger than the earth if
it's smaller it'll have a rocky surface
but if it's bigger it'll turn into a gas
giant at the same time it must be in the
habitable zone of its star a little
further and the planet immediately turns
into an icy giant or a cold superar so
yeah these guys are very picky we first
started exploring these planets back in
the 1970s
however since then we found only a
couple of them but they're still very
interesting the first planet is galise
1214b it was the very first ocean planet
that we discovered initially the
scientists noticed only a small dim dot
this dot turned out to be the red dwarf
star galise 1214 an unremarkable
completely ordinary star that's five
times smaller than our sun and 300 times
dimmer scientists wouldn't worry about
it at all but back in 2009 they noticed
that this star had one single planet and
this planet turned out to be quite
strange this super Earth was 2 and 1/2
times bigger than our Earth and 6 and
1/2 times heavier but at the same time
it had a very very small density and
about the same gravity as our planet in
other words there were almost no rocks
and metals on it but it wasn't a gas
giant either so there was only one
option left it was covered in water and
ice and that's how we discovered the
first ocean planet well actually we can
only assume that it consists of water
that's what the mathematical
calculations say in reality this planet
is quite confusing it's difficult to
explore and so far scientists haven't
been able to find anything there no
hydrogen no helium no water n that's
because the outer layer of the
atmosphere of this planet is very dense
and it perfectly hides its composition
but even even so it's probably a water
world galise 1214b is very close to its
star it's only
0.014 astronomical units away which is
less than the distance between the Moon
and us the year there lasts about 36
hours and the temperatures to put it
mildly are just wild scientists suggest
that the average temperature there can
reach 250 to 535 de F woo that's hot
remember the creepy description from the
beginning well actually spending time on
gley 1214b would be a little different
more like swimming in a steam boiler
because of such gigantic temperatures
the ocean on the surface will be
constantly in a state close to Boiling
without actually reaching it so imagine
that you're descending to the surface of
this planet flying through clouds of
steam and then you suddenly find
yourself in the water what but when did
it happen well that's because the
boundary between Steam and water on gley
1214b will be very blurred of course you
won't be able to swim to the bottom of
this ocean but most likely this bottom
is covered with a very thick layer of
so-called hot ice it's like regular I
but it doesn't really care about the
laws of physics so it just doesn't melt
even at gigantic temperatures and the
thickness of this ice can reach as much
as 3,000 mil so that's it for the creepy
gley 12 1214b and not an Airbnb in sight
now although we can't 100% guarantee
that it's a water world we still have
another candidate for this position a
newly discovered planet called toi
452b this planet located in the dragon
constellation is almost 100 light years
away from us it was discovered using the
test telescope by a group of researchers
from the University of Montreal this
planet also belongs to the class of
super Earth's it's seven times larger
than our planet but 48 times heavier
again all this is at a very low density
because of this scientists have
suggested that almost the entire planet
consists of a giant ocean here we were a
little luck here this world won't be
just a giant puddle in some thick ice on
this planet there's probably a rocky
surface deep under the water just like
in a typical ocean don't get too excited
though this ocean will certainly be very
very different from what we're used to
toi 452b also orbits a small red dwarf
and not even one but two at once at the
same time if the previous planet was
close to its Sun then this one on the
contrary is very very far away it's 2
and 1/2 times farther from its Stars
than Pluto is from the sun and it moves
at great speed a year there lasts only
11 days but we still don't know many
things about this planet well probably
get some new information when scientists
observe it from the James web telescope
well that's it wait did you expect
something else all right all right I
know the question that bothers you the
most can there be life well this is a
difficult question we all know that
water means life and besides these
planets are in the habitable zones of
Their Stars so potentially yes there
might be life not some full-fledged
civilizations of course but bacteria
fish and some creepy giant monsters I
mean you know why not however this is
very unlikely water alone isn't enough
to create life even though it's very
important there should also be some
microelements and some minerals and
unfortunately for most water planets the
composition will only consist of water
and very thick ice there won't be any
minerals there but don't give up there's
still some probability first of all
there are meteorites and comets they can
bring the necessary minerals to the
planet the more often they crash into it
the higher the probability that they'll
bring something like this into the ocean
and thus create life secondly toi
452b actually has these minerals yes we
don't know how deep the rocky bottom is
located there but if it exists then
surely something could have originated
there let's hope that new research with
powerful telescopes will allow us to
find out the truth and and who knows
maybe one day we'll be able to visit
such a planet
ourselves we've discovered Kepler 22b a
small exoplanet in the signis
constellation seems like nothing
important right but it's actually a big
deal this is the first planet located in
the habitable zone that was found by the
Kepler
telescope in other words there may be
water on this planet and if there's
water there may be life Kepler 22b can
become our new potential home so let's
take a closer look at
it actually discovering new planets is
not easy at all not all of them can be
seen through our super cool telescopes
even the almighty Hubble sometimes the
stars are so small and dim that it's
really hard to find them on a
map the same thing happened with Kepler
22 in such cases scientists have to use
a special method first they take a bunch
of photos of the star in different
periods of time then they look at them
and think hm are there any dark dots on
this star somewhere and if they find one
that might be a
planet these photos actually help us to
discover some very important stuff like
first of all this planet exists secondly
here is its size radius and proximity to
the star and finally will we be able to
live there
now we know that Kepler 22b is very
similar to our planet and could
potentially become a second Earth it's
also very close to us only 635 Lighty
years away yeah it's about 3 quadrillion
miles but this is one of the closest
options Kepler 22 the star of Kepler 22b
is a yellow dwarf it's very very similar
to our sun the same size the same radius
even the age is almost the same
4 billion years the difference is only
in Luminosity it's about 20% dimmer than
the Sun so no matter how much you strain
your eyes you won't see this star in the
night
sky the Planet Kepler 22b is about 2.4
times larger than our Earth and that's
pretty good more radius means more
potential water and space to live
although going from one city to another
would take a while it's scary to even
can imagine a 3-day long plane
flight we don't know the exact mass of
this planet but scientists think it's
bigger than Earth's actually the mass of
Kepler 22b can be up to 36 times greater
than that of our planet what does it
mean vigorous gravity if the planet is
36 times heavier than Earth then gravity
there will be about six times stronger
can you barely lift 20 lbs of potatoes
try 120
not to mention that you yourself can
become much heavier on that planet
you'll have to get incredibly pumped up
just to walk there you have to literally
turn yourself into a bodybuilder just to
get to
work the worst thing is that with such
gravity it'd be incredibly difficult for
plants to survive there they'd need at
least a little freedom to Rise Up from
the ground and animals our dogs and cats
would have to turn into little balls of
muscle to survive there
but if this planet has its own animals
or other inhabitants we can roughly
imagine what they may look like they
probably have a lot of legs to make
moving easier they aren't really tall
but they're very massive and extremely
strong H muscular giant spiders could be
worse I
guess the good news is that this is all
unconfirmed information if we're very
lucky and gravity there turns out to be
just a bit stronger than Earth's then of
course it'll be much easier to live
there the next thing we know about
Kepler 22b is that it's about 15% closer
to its star than we are to the sun if
Kepler 22b existed in our solar system
it would be located somewhere between
Earth and
Venus does that mean we're all going to
burn no silly as I mentioned before the
star Kepler 22 is pretty cold just some
10,000 de F and that's why we can assume
that the temperatures on Kepler 22b will
be about the same as we have on Earth if
the planet orbits its star the same way
Earth orbits the sun which we don't
actually know Kepler 22b can rotate
around its star on its side like for
example
Uranus what didn't you know Uranus is
actually lying on its side also look at
its rings yes Uranus also has rings like
Saturn but they're vertical the UN is
truly a mysterious
place so if Kepler 22b is really
something like that then the weather on
the planet will be to put it mildly not
very good incredibly cold Winters will
be regularly followed by hot summers and
just like with tidy locked planets we'd
be able to live more or less comfortably
only on the narrow piece of land between
these two crazy sides let's hope that
this is not the case and the planet
rotates
normally but it's not all that bad
studies show that there may be an ocean
on Kepler 22b you already know that
water means life but in this case it's
also a big plus because a planet covered
by an ocean always has more stable
temperatures the water absorbs some of
the Heat and distributes it evenly
across the planet the hot Parts cool
down and the icy ones warm
up by the way that's exactly what
happened to Earth Earth billions of
years ago when our planet started
getting its first little puddles our
beloved Moon helped these puddles to
spread all over the planet thanks to
this a burning horror that used to be
our Earth turned into a cute little ball
full of
life so if Kepler 22b has water but no
atmosphere scientists think that the
average temperature there could be
around 12° F but if there's also an
earthlike atmosphere then the
temperature can reach 72° F that would
be
nice and finally one year there is equal
to 290 Earth days about 9 months the
planet has no natural satellites so
unfortunately we'd have to say goodbye
to a beautiful view of the moon on the
bright side we'd probably be able to see
the Sun as a distant Little Star we
could admire it in the night sky
remembering our home well not hiding
from giant
spiders and this is all that we know at
the moment unfortunately it's quite
difficult to explore such planets so
there's a lot of very important data
that we don't know for example what kind
of planet is this
anyway yep we're missing the most
important information about Kepler 22b
we don't know if it's a rocky planet or
not and if not then all the previously
mentioned information means
nothing it may turn out to be a gas
planet or a planet covered with gas but
with a solid core like Neptune or a
water world covered with a giant
ocean in this case it better be a water
Planet then at least we could build some
kind of underwater city there we could
filter the water and eat fish until we
evolve into an amphibious species does
it even count as Evolution if we go back
to Our
Roots scientists however think that
Kepler 22b may turn out to be a neptun
likee planet some astronomers have even
assigned the planet to a category of
many Neptunes yes this is a real
planetary category but this hasn't been
proven
yet but even if fortunately for us
Kepler 22b turns out to be a rocky
planet we still don't know what the
atmosphere is like there does it exist
at all what if it turns out to be
something like the atmosphere of Venus
which is more toxic than your ex then
we'd have to dig deep underground to
somehow survive on this planet and then
we'd have to come up with a heat Source
because it's pretty cold underground
yeah let's hope this won't be the
case there are many possibilities with
Kepler 22b so far we don't have a clear
answer but let's hope that scientists
will find it before we load the first
people into shuttles and send them to
conquer Kepler 22b that would be awkward
if it turns out to be a gas planet or
something like
that the only line that we are certain
about so far in the entire universe is
on planet Earth whether that life is
intelligent is let's say arguable but
anyway it's not surprising that we're
tirelessly searching for life on other
planets so far they've discovered more
than 4,000 of them but what's even
cooler NASA has compiled a new list of
24 planets that aren't just earthlike
they're better the conditions on them
are so good that they're more
comfortable than on our Planet so let's
examine some of them koi
orange dwarf orange dwarfs are stars
slightly smaller than our sun and have a
little lower Luminosity uh did you like
the alliteration there anyway don't
worry it doesn't mean we're going to
live in complete darkness in fact if the
planet is found closer to the sun and it
has a thicker atmosphere it may even be
lighter and more colorful than on earth
now our sun has a very short lifespan
right now it has 7 to 8 billion years
left to live a little longer than than
Earth's age but orange dwarfs can live
from 45 to 70 billion years this is
great not only because we'll be able to
hang out on this planet longer but also
because the planets around these stars
have more time to form life now ideally
we would need to find a planet next to
an orange dwarf that is about 7 billion
years old it's very likely there will be
at least some organisms there koi
57151 is about 5 5 billion years old
yeah it may not seem mature enough but
that's okay neither do I our Earth is a
billion years younger and that didn't
stop us the planet is quite close to its
star and is in a habitable zone when
you're there last 190 days imagine going
to elementary school and already getting
a driver's
license it's almost two times larger
than the earth the average temperature
there is 52° f which is slightly less
than ours
57 but it mostly feels warmer there
because strong gravity helps it hold on
to heat in the atmosphere longer it's a
little too far away though like 3,000
Lighty years from Earth which is about
18 quadrillion miles yep better bring a
really big lunch with you koi
3101 this planet is found next to the
star koi
2010 this planet sounds like a very
pleasant world the average temperature
on this planet is 67° so a little warmer
than ours but that's a good thing
scientists believe that on a perfect
Planet the temperature should be just
about 10° hotter than on Earth the more
heat there is on the planet the more
comfortable it is to live there also the
higher chances of developing life the
radius of this planet is nearly 1 and 1
half times larger than Earth there's
some atmosphere although we're not yet
sure about its composition but it's
probably like the earth scientists think
that we'll find an ocean there and it
can cover up to 60% of the surface which
is also cool in a perfect world water
and land should be distributed more
evenly than on our planet a little more
land means a little more territory and
resources right but listen this planet
is actually very similar to the Earth
the semblance is so striking that
scientists believe we have an 84% chance
to find life there of course not
necessarily an intelligent life but at
least some animals wouldn't that be cool
now what do you think they could look
like H very earthlike Planet but with
stronger gravity well if someone lives
there they're probably big but have a
small height and strong little legs
sounds adorable and scary but we won't
be able to find out the truth anytime
soon so far for us these planets are
microscopic dots in space we only have
some dry boring data about them and
don't even know know what they look like
we'll have to wait until we can find a
way to get closer to these planets
Kepler
186f this is also one of the best
candidates for having life this rather
acute planet was nicknamed the Earth's
cousin because it does have a strong
resemblance anyway these two planets are
like sisters not twins Kepler 186f
rotates near a red dwarf red dwarfs are
stars even dimmer and smaller than
orange Dwarfs yeah they'll also live for
a very very long time but their
Luminosity is also quite low however
Kepler 186f is closer to its star than
we're to our sun so it shouldn't be too
dark there well at least not nlike dark
the sky on this planet is sure to be an
unusual shade of red like sunsets on
Earth what do you think would you like
to live on a planet with an eternal
Sunset the size of this planet is about
the same as Earth not bad not perfect
why so because the coolest planets are
those that are bigger than Earth and
have stronger gravity now you'll
probably say but wouldn't it be harder
to walk there and even harder to get out
of bed on Monday of course but on the
other hand this planet will pull the
atmosphere better the atmosphere will be
thicker and denser this means more
protection from the scary space stuff
more oxygen and more heat not to mention
the fact that the bigger planets have
more space to fettle awesome right but
of course the earth size is also an
excellent choice another cool fact is
that the tilt of Kepler 186f is about
the same as ours it means that there
should be stable seasons and a normal
day night cycle do you know how
important the tilt of the planet is
let's look at Mars Mars is also in fact
found in the habitable zone of our sun
but its tilt is very unstable and as a
result the entire ocean that could have
been on it once now completely dried up
today it's just a red desert and there's
no life there at least not as far as we
know but you see how important these
tiny details are this planet is also
quite far away from us 490 light years
that's about 3 quadrillion miles so yeah
we're just going to keep waiting for
Intergalactic
travel Kepler 62e and
62f these planets were called the most
earthlike before we discovered Kepler
186f they're very comparable to our home
Kepler 62e is about 1 and 1/2 times
larger than Earth and Kepler 62f is just
slightly smaller than that they're
located in the constellation Lyra which
is about 12200 light years away from us
they both also orbit a red dwarf one
year on Kepler 62e lasts about 122 days
even less than on that that first planet
we talked about scientists believe that
both 62e and 62f are sort of water
worlds warm places mostly or even
completely covered with water if there
is land there it's probably just some
islands h a world consisting entirely of
islands a fantasy dream for some think
Hawaii and a nightmare for others think
Megalodon but if you're a fan of ancient
marine animals just imagine and how
gigantic they could be there still there
are many things we don't know about this
planet does it have a surface what about
its composition density one day maybe
we'll be able to answer these questions
and so that's it for the super Earths of
course the original list is much longer
and you can go check it out on the
internet now the best thing about all
this is that these are planets that are
better than the earth but we also know
thousands of other exoplanets that are
just close enough to ours and the odds
are a few of them have at least some
form of life but they're very very far
away so we have no way to check it out
right now perhaps down the road we'll
find some cool creatures on many of
them I hope you feel well rested because
I've got a tough task for you don't
worry it's fun you're going to visit
different planets of our solar system
and try to run on each of them let's
figure out rout where you can run the
fastest and where you can barely
walk the fastest man on earth Usain Bolt
can run with an average speed of about
23 mph but his top speed is higher up to
27 mph sadly we can't all be Usain bolts
the average person runs at a speed of 6
to 8 mph but maybe there's a planet out
there where you can beat the famous
Jamaican sprinters
records but first things first
what will affect your speed when you run
on other planets for one thing gravity
depending on how strong it is on the
planet you visit it'll influence your
weight and in most cases the heavier you
are the more slowly you run Plus on all
other planets in our solar system except
Earth you'll have to wear a bulky space
suit without it your chances of survival
there are non-existent and don't forget
about extreme weather conditions on most
planets it's either freezing cold or
boiling hot hot or very and I mean it
windy anyway your amazing journey is
about to begin buckle your seat belt the
first planet on your itinerary is
mercury as you sneak a peek at this
world through the window of your
spaceship you notice that the planet
looks eerily similar to The Good Old
moon but just a few moments later you
realize it's just an illusion all over
the surface of mercury you see craters
left by space rocks
H this may make your task of running on
this planet way harder this and your
bulky spacit duh but you wouldn't
survive on Mercury without this
protection the temperatures on the
planet are extreme 800° F during the day
and netive 290° F at
night hey but there's one thing that can
work in your favor on this unfriendly
Planet let's say you weigh 155 lb on
Earth then on Mercury you'd weigh around
50 8 lb which means that despite your
bulky spacit you can move way faster
than you do on Earth and maybe your
speed will even reach 13 mph if you try
really
hard the next planet on your itinerary
is Venus also called The Morning Star
while coming closer you see a world very
different from the bluish Planet you
might have seen in books before landing
you have to get through a super dense
atmosphere made up of carbon dioxide and
while your spacecraft is desc ending
you're watching thick clouds of sulfuric
acid pass
by Venus is often called Earth's twin
because these two planets are of similar
size and density no wonder that on Venus
you weigh almost as much as you do on
Earth 140 lb so your weight is a bit
smaller here but don't forget about your
space
suit and still because of almost the
same conditions on the two planets you'd
be able to run a bit faster than on
Earth at around 8 .5
mph your first impression of Mars is
that it's freezing cold the average
temperature here is about 80° F even
from afar the planet looks reddish once
you make your first step on the Martian
surface you understand why the ground's
covered with Rusty colored dust the same
fine dust is floating in the air around
you wherever you look you see golden
brown tan and even greenish hue
they depend on the minerals that make up
the soil the size of the Dust layer
varies from area to area but in most
places it's around 7 ft thick H that can
make running much more
difficult on Mars your weight would be
much smaller than on earth a mere 58 lb
this will help you achieve an impressive
speed of 12 mph aren't you a
champ what's that on the horizon it
looks like a tornado is it a dust storm
then it's time to make a run for it dust
storms sometimes cover the entire planet
and you can even see the largest ones
from
Earth and now you're facing a problem
you see Jupiter as well as Saturn is a
gas giant this means that the largest
planet in the solar system and Jupiter
is so large it could swallow 1300 Earths
doesn't have any solid surface well
you'll just have to imagine what your
running workout would look like like if
you could run on Jupiter this planet has
an atmosphere that consists of hydrogen
and helium gas during your descent you
admire thick brown yellow red and white
clouds they make the planet look
colorful and beautifully
striped on Jupiter you'd weigh 390 lb
you'd have to break a sweat to simply
walk there wearing your clumsy spacit if
you could step on the planet's surface
that is if you tried to run there your
best result would probably be a speed of
1 or 2
mph to make matters worse it's extremely
windy on Jupiter with the wind speeds
ranging from 200 to 400 mph do you see
those Rings that's Saturn another gas
giant with no solid surface this
planet's made up of mostly hydrogen and
helium and its temperature and density
change the deeper you go if you decided
to leave your spacecraft and step on
Saturn's surface you'd just fall into
the planet
but from above it looks as if Saturn
does have a surface the seemingly solid
yellowish Brown sphere is surrounded by
several layers of clouds the visible
outer layer is made up of ammonia clouds
under them there are hydr sulfi clouds
and the innermost layer is made up of
clouds of
water even though Saturn is a gas giant
your weight wouldn't be very different
here around 165 lb that's because the
planet's gravity is similar to that of
Earth but because of the conditions on
the planet and your bulky bulky spacit
you'd run a bit more slowly there at a
speed of about 4
mph before leaving you admire Saturn's
most famous feature awesome gray beige
and tan Rings these groups of tiny
ringlets are made of chunks of rock and
Ice you also spot several of the 53
moons of Saturn oh that's Titan an icy
world bigger than our moon and even
Mercury it's the second largest moon in
the solar
system the next planet on your way is a
blue green ball of ice and gas that's
ice giant Uranus it has this beautiful
Hue because the light from the sun gets
reflected off the planet's
surface Uranus isn't solid hit the
brakes if your spacecraft doesn't manage
to stop in time it'll fly through the
upper atmosphere and sink into the icy
liquid center of the planet
H I doubt you'll be able to conduct your
running experiment here so let's just
imagine what it looked
like on Uranus your weight would be
around 138 lb and Against All Odds you
could actually reach a good speed here
at least 8 mph if you didn't get caught
in a hurricane of course extreme storms
occur on the planet in the summer when
Uranus is heated the most then
hurricanes can spread for more than 6,00
,000
miles the furthest planet from the sun
Neptune is four times the size of Earth
but 17 times as heavy the blue surface
you see When approaching Neptune is
actually a layer of swirling gas and
permanent
clouds the planet's mantle is made up of
water ammonia and methane ices it's the
closest thing Neptune has to a surface
and still there isn't Solid Ground for
you to walk on so once again try to use
your
imagination on Neptune you'd weigh a bit
more than you do on Earth 174 lb but
your running speed would be just a bit
lower than on Earth around 5
mph that's the end of your active
Adventure which planet did you like
running on the most
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