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Scientists: We’re Stuck in a Cosmic Void – And It Changes Everything!
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now I don't want to Spook you but there's a chance that our entire Milky Way galaxy is located in the so-called space void it's a region where there's relatively little matter compared to other corners of the known universe and it's much less dense than it is elsewhere in the universe in other words we might exist in an air bubble in a cake if that's true it would mean that we're even loner than we thought H in our universe all the galaxies are constantly moving away from each other in order to understand how far they move away scientists use something called the hubo latra constant it's like a speedometer but for Galaxies however there's a cosmic mystery called the Hubble tension it's challenging what we know about the universe's expansion scientists used to consider the Hubble lator constant a reliable guide but our recent observations question this reliability the speeds we see in real life don't match up with the distances we count calculated and expected they aren't sure why these measurements don't add up researchers followed the moves of supernovas and saw that the Universe seems to expand faster around us than it does overall as if it's actively avoiding us specifically H after considering this they began to assume that we might all live in a cosmic void Cosmic voids are vast empty spaces between galaxies kind of like between my ears they make our entire world looked like a big sponge now let's go back to the beginning just a fraction of a second after the big bang right after the beginning of everything the universe was a hot compressed plasma it only had very tiny variations in density called Quantum fluctuations after the big bang the universe began to expand those Quantum fluctuations grew together with it creating regions of varying matter density because of that the Universe didn't expand everywhere uniformly instead little claps of matter began to gather together over a long period of time creating massive structures galaxies galaxies are arranged in huge walls and filaments with enormous gaps in between and these gaps are voids also known as dark space now these voids aren't truly empty in fact they actually hold more than 15% of the amount of matter found on average throughout the entire universe they still contain gas dust dark matter and even stars and galaxies however they have less density than regions with galaxies about a tenth of the average matter density which is why we consider them nearly empty usually they'll have a diameter ranging from about 30 to 300 million light years that is an enormous distance even on a space scale for comparison most planets and nebulas we found so far have a distance of hundreds and rarely thousands of light years away from us in the case of voids if you were in the middle of one it would just look like seemingly Eternal Darkness the closest Stars would be so far away that they would be almost invisible to you some of them are especially large they're known as super voids the largest known one was creatively named giant void ooh it's so big it's impossible for us to even imagine 1.5 billion Lighty years away with a diameter of 1 to 1.3 billion light years yeah it's basically a big dark vacuum but even this giant vacuum isn't entirely empty the giant void houses 17 separate Galaxy clusters within its expanse however it might not be the biggest emptiness in our universe there's this thing called the CMB cold spot it's this unusually large and chilly area of our universe that we saw through the microwaves it really stood out on the map of our universe I with its unexpectedly low temperatures and scientists have spent many years trying to figure out what the thing is in 2015 scientist proposed that this place might be a supervoid and probably the largest one ever being even more original when this one they called it the great void if it's true this place would be an emptiness of about 1.8 billion Lightyear in diameter about a thousand times larger than typical voids not everyone thinks that's possible posible so scientists keep arguing over this one there's another interesting Theory going about this place one researcher suggested that this place might have been a trace on our collision with a parallel world it's a pretty bold hypothesis but unfortunately there's no way for us to confirm or deny it with our current Technologies in any case as the universe expands these voids will grow and the walls connecting Galaxy clusters will stretch and break eventually the voids will merge leaving gravitationally bound Galaxy clusters as islands in the expanding emptiness in other words soon or later the great emptiness will consume everything in our world so it turns out we might be a rare occasion in a supervoid when of the 15% of matter this would explain why we're surrounded by relatively few galaxies this discovery if true challenges the standard model of cosmology which we created with Albert Einstein's help it would mean that gravity in general behaves differently than what we expected according to the standard model such a significant under density shouldn't exist because of that scientists will have to explore and consider this idea thoroughly it might just challenge our very basic understanding of physics the scientists call this the local hole the discovery of the local hole May hold Clues to explaining the FY Paradox maybe in in this specific part of the universe where we hang out the chance of intelligent life developing anywhere nearby is very low perhaps all of the sensient beings hang out somewhere beyond our supervoid but that doesn't mean we should lose hope or that life anywhere nearby is impossible in fact life in the universe might be much more common than we previously thought we know that the inner planets like Mercury and Venus are inhospitable due to exe conditions however Venus looks interesting because even though it's a crazy toxic Planet scientists believe that it was very earthlike in the past it could have even hosted life unfortunately it was too close to the Sun and all the nice conditions evaporated over time but there's a possibility of microbial life surviving in its high altitude clouds Mars a cold desert also might have been a friendlier place in the past with rivers and lakes though now it lacks a protective atmosphere ancient life might have existed there in that case it would leave potential fossils and underground microbes could still survive we've discovered some signs of them but are still debating whether this stuff was truly organic or not the gas giants like Jupiter and Saturn and ice giants are not ideal for life but their moons offer hope Europa has an ocean beneath its icy surface making it a potential hot spot in cetus releases water into space carrying complex molecules that hint at interesting possibilities and Titan is especially unique it has liquid bodies on its surface rivers and laks of hydrocarbons while its frigid temperatures aren't great for life scientists Ponder if it might host life with a different kind of chemistry however it will take us decades to check all these celestial bodies and study them properly we haven't sent anything so far since the times of Voyager 2 but if we're lucky we might explore our solar system during the 21st century we might explore our solar system during the 21st century in any case there's a lot of potential for life even in our solar system alone not even mentioning all the planets and galaxies we found nearby our estimates suggest that the observable universe the one we can see might host around 5.3 trillion habitable worlds one of the most likely candidate so far is Kepler 186f it's a potential earthlike Planet just 10% larger than Earth this planet orbits a red dwarf star which is a star a bit dimmer colder but more long living than our sign and it's only about 490 Lighty years away which may sound like a lot but remember what distances we've discussed with super voids so even if we really are in the supervoid we're still lucky to have many galaxies and planets around and if one day we'll find a way to travel through the universe leaving the local hole probably wouldn't be a problem our vast universe is home to phenomena such as star devouring black holes rapidly rotating pulsars radiant nebuli birthing stars and countless galaxies yet it may not be endless there could be a distinct Edge a cosmic boundary let's embark on a journey to that possible Frontier visualize the universe as a massive layered structure at its core is Earth enveloped by our solar system which is in turn housed inside a Galaxy within this Grand universe as we journey beyond our solar system passing by the planets from Mars to Neptune we encounter the heliosphere here the solar winds velocity plunges dramatically giving way to the near stagnant wind at the heliopause beyond the ship faces the force of the Interstellar wind two remarkable emissaries from Earth Voyager 1 and Voyager 2 now reside in this region they revealed the heliosphere uneven shape venturing further an asteroid belt known as the ort Cloud becomes visible believed by some scientists to Source Earthbound comets Beyond lies the expansive Milky Way spanning Around 106,000 light years guiding our journey is a cosmic map identifying our our location in the lanaka supercluster however there's more at a greater scale the Hydra Centaurus supercluster emerges at the universe's maximum observable scale a surprising Revelation awaits evidence suggesting a universe boundary this Edge located an astounding 10 billion light years away is a testament to time and evolution during such a lengthy Voyage our sun might wither or explode and the way might merge with the Andromeda galaxy our Endo is the aidonis supervoid a vast empty stretch spanning a billion light years this void might result from an unfathomable Collision our universe meeting another this leads to a tantalizing notion of multiple universes where every choice leads to alternate outcomes in parallel realities imagine our universe as a bubble eons ago another bubble Universe brushed against ours their gravitational interplay caused Cosmic distortions as they separated a piece of our universe might have been taken leading to the creation of the aidonis supervoid aradena supervoid covers a region of space about 1 billion light years in size this makes it one of the largest known voids in the universe the superwave is associated with the so-called cold spot in the cosmic microwave background radio radiation the temperature in this spot is lower than the average temperature of the background radiation the exact origin and nature of aridon supervoid is still a subject of research this object provides scientists with a unique opportunity to study the structure and evolution of the Universe on large scales yet perceiving the universe's entirety remains a challenge like an ant on a basketball we see a consistent Horizon due to our 3D viewpoint but adding Dimensions could change our perceptions could black holes with their powerful gravitational influence offer a passage to these other Realms the vast expanse of our universe is filled with intriguing structures Mysteries and phenomena that continually challenge our understanding of the cosmos the arinis supervoid with its immense size and enigmatic nature stands as a testament to the universe's capacity to astonish and confound us and for those intrigued by the enigmatic nature of black holes we invite you to explore more in our other videos dive deep into the mysteries of these Cosmic Giants and join us on a journey of understanding and [Music] wonder the universe is believed to have started around 14 billion years ago with a big bang and as far as we know it hasn't stopped EXP expanding since then but if it's so the universe must have started somewhere right and there has to be the center of the universe somewhere out there well experts claim there's no center of the universe neither is there any center of the expansion it's the same everywhere you see it's wrong to imagine the Big Bang as an ordinary explosion and the universe does not expand from the center outward instead as far as We Know the universe is expanding equally in all places in 1929 Edwin Hubble said he had managed to measure the speed of galaxies that were located at different distances from Earth he discovered that the farther they were the faster they were moving away from us does it mean we are at the center of the expanding Universe unlikely it just means that the universe is expanding at the same rate everywhere and wherever you are it will seem to you that you're at the center of the universe now about that big bang if you watched a regular explosion in slowmo you'd see material expanding out from a central point right after the explosion the center Remains the hottest point later a spherical shell of material starts growing moving away from the center of the explosion the process continues until gravity stops this expansion but the big bang was nothing like that it was an explosion of space not an explosion in space according to the most common theory there was no before to speak of no space and no time it means that the Big Bang was very different from anything we're used to and doesn't have any Central Point even if we had been able to observe it in real life we wouldn't have seen an expanding edge with empty space beyond it the only thing we can detect now now is a faint background glow it was left by the hot primordial gases that existed in the early Universe this is called cosmic background radiation and it's uniform in all directions it can mean only one thing it's not matter moving outward from one point but space itself expanding evenly at the same time the idea that the universe is expanding uniformly in all directions doesn't rule out the possibility that somewhere out there there's a denser and hotter place that might be called the center of the universe but as far as we can see there's no sign of such a special point the theory that the Universe should be uniform is known as the cosmological principle it appeared in 1933 not so long before that some scientists believe that the Universe only consisted of our home Galaxy if this was the case we could definitely consider the center of the Milky Way to be the center of the universe but in 1924 Hubble put an end to that debate he showed there were other galaxies besides our own but in any case how we see the universe is limited by the speed of light and the finite time since the Big Bang occurred even though the observable part of the universe is very large it's likely tiny in comparison to the entire universe which may be infinite the universe might have many shapes with or without an identifiable Center and if it turned out to have a center outside of the observable universe this point or region of space could be just one of many it could be just like the center of our galaxy which was considered to be the center of the universe before you're traveling through deep space circling stars and entire galaxies looks like this multicolored neula will soon collapse under its own weight and explode like a supernova now let's carefully Circle this black hole try not to get caught in its gravitational field or it'll swallow you like a space monster H wait what's that strange structure right there it's a glowing wall and if you look closely each glowing dot is an entire galaxy that wall has about 100,000 of these galaxies the Milky Way has 100 billion stars so this wall holds a quadrillion that's 10 followed by 15 zeros of stars just like our sun this giant structure is called the South Pole wall it's located about 500 million Lighty years from Earth by comparison the closest star to our home is Proxima centuri and it's about 4.2 light years away Rockets can cover that distance in about 73,000 years so the journey to the South Pole wall may take longer than our solar system exists and this wall is simply gigantic even on a cosmic scale it's about 1.37 billion light years long to give you an idea of how large that is the Milky Way is only 100,000 light years wide but you can't see this wall even with the most powerful telescope the problem is that the Milky Way itself obstructs your view it's so bright that it's hiding this wall it's like trying to look at the Starry Sky in a metropolis the light pollution won't let you do that scientists have been able to detect this Galactic wall by measuring red shift we know that all objects in the universe are moving they spread out from each other as a result of the Big Bang which happened billions of years ago and when galaxies move their light waves change slightly by measuring this change we can understand what the object is and how it moves and this wall isn't even the largest in our universe this is the Hercules Corona Borealis Great Wall it's a giant flat superstructure about 10 billion Lighty years wide that's around 10% of the entire observable universe and it's also a wall that is a cluster of galaxies we were able to detect this giant structure by gamma ray bursts it's the brightest electromagnetic event in the universe you could even see it in the far reaches of our universe such bursts are a very rare event in the Milky Way for example it happens once every few million years if we notice many such bursts in a short time from the same place it means that there are many objects like the Milky Way in that place so there are a lot of galaxies out there another unusual giant structure in the universe is the huge large quazar group it's about 4 billion light years across so it takes a photon of light almost as long as our planet has existed just to get from one side of the structure to the other and if you put the huge large quazar group on the scale it would be 6.1 billion billion times heavier than our sun scientists have found that there are at least 73 quazars in that structure these are some of the most unusual objects in the universe they are the active cores of galaxies at the center of a quazar is a super massive black hole this giant eats up the matter around it a wild force of gravity twists the matter around the black hole forming a disc and this disc is the source of the strongest radiation out there by comparison the radiation from a single quazar is tens or 100 of times stronger than that of all the stars in our galaxy put together because of such strong radiation we can detect quazars even at very long distances that's why they're also called beacons of the universe scientists use quazars to study the universe and the movement within it one of the most distant quazars from us is about 13.1 billion light years away this makes it one of the oldest objects in the universe it appeared about 690 million years after the big bang and it's almost three times older than our solar system it's still glowing with extreme brightness about 4 and 14 zeros times brighter than the sun scientists explain that at the center of the giant is a super massive black hole 800 million times heavier than the sun all these giant structures are just building blocks of our universe look this is our solar system now zoom out a little and this is where our home star is in the Milky Way Galaxy zoom out again here's a local group of galaxies all the bright spots here are galaxies here's Andromeda and here's the triangulum Galaxy plus a few dozen other slightly smaller galaxies they're all gravitationally connected the size of this structure is about 10 million Lighty years that's 100 times the width of our galaxy zoom out please this one is the Virgo super cluster it's 20 times larger than the local group there are about 30,000 different galaxies and the mass of the whole thing is about 1 in 15 Zer solar masses zoom out again layak Kia this structure is almost three times larger it includes the Virgo super cluster and other smaller clusters and there are about 100,000 galaxies here huh it's not over yet zoom out one more time here's the Pisces cetus supercluster complex this giant Galactic structure contains about 60 clusters of galaxies so there are more galaxies in it than grains of sand in the desert you know what to do zoom out phew this is the observable universe there are over 500 billion galaxies and the Stars well there are about 1 billion trillion Stars the observable universe has its own structure clusters of galaxies form chains and walls as you've seen before but these strands are separated by huge regions of absolute emptiness these areas are called voids in these places there is no matter at all there are fewer molecules in the voids than in an empty room one of these voids has a very mystical reputation it's the aridness supervoid or the cold spot it appeared here only 38,000 years after the big bang it's almost 1 billion Lighty years wide and could hold hundreds or thousands of galaxies with trillions of stars some scientists believe that this cold spot may have been the result of the large lest Collision ever a collision of universes there's a theory that our universe is some kind of bubble a huge sphere that contains all these walls and chains of galaxies now imagine that there's an infinite number of these bubbles they could be parallel worlds or different universes many years ago one bubble came close to the bubble of our universe their walls touched and the two universes connected for a while it's like two drops of water coming together but that Universe kept moving the area where the bubbles joined became thinner and thinner until that connection broke and the two bubbles detached from each other at this point the second Universe ripped some of the material out of our bubble all those galaxies that used to fill the aridis supervoid ended up in a parallel universe scientists supposed we might travel through other bubbles flying to the supposed wall of our universe would take forever and then it would take even longer to fly through inter univ IAL space so we have to use portals or wormholes here's how it works imagine a piece of paper with point a on one side and point B on the other instead of moving all the way across the sheet of paper we just fold the sheet so that point a is right above point B all that's left to do is make a small hole and the journey takes only moments some scientists believe that such shortcuts through universes lie inside black holes but how do you survive falling into a black hole you just have to pick one that's big enough it's all about gravity imagine you're falling into a black hole right now the closer you get to it the stronger effect it has on you it intensifies with every inch at one point the gravitational force that affects your head is much stronger than the one that affects your feet then you turn into spaghetti yum but if you choose a super massive black hole like the ones at the centers of galaxies the gravitational force in them increases gradually they can be millions of times heavier than the Sun and much bigger but the gravitational force on your head and your feet will be almost equal and you will still feel comfortable who knows maybe if you manage to survive a fall into such a massive black hole you'd find yourself in a completely different Universe where different laws of physics apply but so far this is just a [Music] theory there are probably 36 other civilizations hanging out in the Milky Way and over 170 billion galaxies give or take in the observable universe conditions for life are all over space so where is everybody nuclear physicist enrio fery came up with this exact same question during a lunch break with his colleagues in 1950 leading to one of the most unsettling paradoxes in the universe even though there's a huge prob ability of extraterrestrial civilizations existing we still haven't found any clear evidence of them when possible explanation comes from the zoo hypothesis it suggests that advanced extraterrestrial socities exist and know exactly who we are and where we are but intentionally choose to stay hidden they're just observing human quirky behaviors as if we're in some kind of a cosmic Wildlife Park but their intentions could be much darker If You're a Star Trek fan you probably remember the main rule for Federation members Starfleet officers shouldn't contact species that are not Advanced to avoid messing with their development even if it means risking their own lives now even though it's fiction this rule perfectly captures what the zoo hypothesis is all about beings from other corners of the universe see our planet as a cosmic zoo with one-way bars they can watch us brushing our teeth in the morning or walking our dog but we can't catch a glimpse of them in this Theory non-terrestrial life forms deliberately keep their distance from us sticking to a hands-off policy agreement in the vast Cosmic neighborhood it's like those super smart beings agreed that we needed to have the freedom to shape our own future and Destiny following in our own path of development without external contamination the idea is that these super Advanced civilizations could be like oh I don't know 500 million years ahead of us which would explain why we haven't seen any signs of them and maybe it's better this way as humans could eventually be destroyed or even assimilated by this new cosmic power Independence Day style as much as things like going to an art museum might be interesting to us extraterrestrials probably wouldn't be too thrilled watching us stare at the Mona Lisa painting for hours interplanetary cultures might be more into buying tickets to quietly observe how we're developing new technologies such as ultramodern satellites according to the zoo Theory they can't reach out to us until we hit a certain level of development so improving our technology and wisdom could be the only way to show them that we're mature enough and don't need their spaceship parenting anymore there are a couple of reasons why it's hard to buy into the zoo hypothesis I mean okay extraterrestrials might not visit or reach out because we're not all that advanced but it is tough to explain why they keep ignoring all our attempts to communicate even if the zookeepers try their best not to interfere with animals lives and behaviors I bet they couldn't just ignore a bear speaking in loud and clear English about its desire to communicate so that's pretty much why humans keep trying and trying to provoke some reaction from inhabitants of other planets using radio signals in 2017 in a Valley 8 Mi southeast of the Norwegian city of truma a radar antenna transmitted some specially composed electronic music to potential Intergalactic listeners the target audience was in GJ 273 also known as light and star it's a runty red dwarf located 12 light years from our Solar System since radio waves travel at the speed of light we'll have to wait more than two decades before looking for a reply but the main problem with radio ways is that we're kind of in the dark about where to look and civilizations might be as far as 177,000 light years away plus we don't know which radio frequency extraterrestrials use to chat now here on Earth we use the radio spectrum to send signals into the universe assuming that what works for us might be a common method for other civilizations but in fact it could be considered a somewhat old school technique for other beings that's why current projects are now looking for techno signatures which are signs of technological activity from extraterrestrials like City Lights solar panels Mega structures or artificial satellites another potential clue is to study the atmospheres of planets orbiting nearby stars as an advanced civilization might be altering its atmosphere with different gases making it detectable despite Decades of observations there is still no definitive evidence that advanced extraterrestrial civilizations are out there but that doesn't mean they don't exist even by expanding search Fields we're talking about odds much Slimmer than hitting the jackpot with with a roughly 1 in three billion chance of finding an advanced civilization within a given distance from Earth maybe space creatures are responding to our communication attempts but in a way that we can't understand the universe has been around for more than 133 billion years while humans showed up just 200,000 years ago and this is about 0.01% of the universe's age it's like we're still learning to talk while other super smart beings might be sending us messages that are all Lost in Translation we keep waiting for a giant UFO to land on Earth and for green ETS with huge eyes to come out of it but we forget that our Intergalactic neighbors could be more interesting in building Nano Technologies to watch over us they could also be trying to communicate using neutrinos which are subatomic particles with an extremely small mass that could effortlessly pass through our planet without being detected by our current technological iCal devices now the zoo hypothesis has another issue it is pretty tough to believe that with all these civilizations supposedly hanging out in the universe they would all decide not to reach out to humans for this to happen there would have to be a great sense of structure with a higher intelligence working as the head of the universe giving them direct orders and clear rules to keep us isolated but we're talking about billions of possibili ities for life right more civilizations mean that there are more chances of a violation of this no contact rule so most likely at least one independent Planet would be just as desperate to find life in the universe as we are some scientists also believe that if such Advanced life had substantially colonized Earth and many other planets we would know it by now the zoo hypothesis has two other variations that are even more frightening in the laboratory hypothesis nobody contacts us because humankind is actually being subjected to experiments and Earth is essentially a giant science lab other worldly creatures could be analyzing human responses to various survival challenges such as tsunamis or massive earthquakes in this case the no contact agreement between all other space groups would make a bit more sense since it's in the name of scientific research for the greater good at least for them the planetarium hypothesis proposed in 2001 suggests that we are living in an artificial Universe in some kind of virtual reality designed to give us the illusion that the universe is empty when it's not but no possible generator could test this hypothesis besides the zoo the laboratory and the planetarium theories there is another possible answer to the fmy Paradox nobody contacts us because humans are completely alone in the universe this is known as the rare earth hypothesis and it emphasizes how Earth occupies an incredibly unique position no other planet could bring life to the universe that could be more than just bacteria we may consider ourselves pretty lucky as even a small change in any of Earth's orbital parameters like the distance from the Earth to the Sun or the rate of rotation could make conditions too extreme for people or life in general but again it's hard to think that we are alone in this vast universe so we're back to the Paradox where is everybody the universe is expanding and if it's expanding then it probably had a beginning somewhere now all we have to do is to run time backward and see where the beginning was it took the scientists many more years to come up with a full-fledged Theory The Big Bang Theory and here it is nothing has ever been anywhere because neither when nor where existed but actually no there was one thing it was the so-called Cosmic Singularity a state of our universe in which it was incredibly small dense and very very hot imagine if our universe was compressed into a small ball the pressure and temperature in side would be enormous at some point it became impossible to withstand them and here comes the Big Bang it was an outburst of energy and matter that created everything we see now time and space basic physical forces it also scattered quarks everywhere these quarks tiny particles that make up our world were all boiling in an incredibly hot Cosmic broth when it cooled down gravity began to attract them to each other they gathered into atoms then molecules and then into the first objects in the world stars but what was before that Alan Harvey goth an American theoretical physicist and cosmologist has devoted his whole life to solving this mystery after learning about the Big Bang Theory Guth found some flaws in it for example the distribution of matter was very even although it shouldn't have been if we drop the balloon filled with paint down it will burst will'll see absolute Chaos on the canvas but the early Universe don't looked like the early Universe was very even and proportional that was guth's Discovery the theory of inflation here's what it says even before the Big Bang there was some kind of force that could give the bang a strong acceleration something that was able to distribute everything in space instantly and evenly Martin booval is a German professor of physics and in his opinion the universe was born quite differently according to Martin's Theory The Singularity couldn't just appear out of nowhere let's look at a pendulum on the Old Clock the pendulum rotates back and forth its movement is smooth continuous and non-stop this is how we usually see time it flows and never stops but Quantum time doesn't work that way it consists of small segments and makes short pauses just like with the second hand of a clock the beginning of one segment of time is always the end of another according to the Big Bang Theory Once Upon a Time our universe began to expand inflate like a balloon but sooner or later it will blow away back the universe will start shrinking and return to the state of cosmic Singularity and then Big Bang too nothing appears out of nowhere and disappears into nowhere according to boal's Theory the beginning of each universe is the end of the previous one our universe is not at all the first and not the last millions of similar universes existed before us and will exist after us this Theory although it sounds very logical is far from complete so for now all this is just a hypothesis but some people come up with even stranger ideas Neil Turok a South African physicist and his colleague Paul steinhardt an American theoretical physicist they say that yes our universe isn't the first one our universe is just one of an infinite number of others and all of us are stuck in a cycle of endless rebirths of parallel worlds according to this Theory our universe is located inside a so-called brain as in membrane in other words we're stuck in some kind of elastic surface that's capable of Contracting stretching oscillating and so on like pieces of fabric on a rope another universe may be an inch from ours but we can't see it that's because there's a tiny space between us and this tiny space contains the fourth dimension how do these universes originate through brain Collision these brains are getting closer to each other very very slowly until they finally Collide their Collision creates two big bangs and two parallel universes then they're moving away from each other the cre created worlds continue to live we're currently at this stage remember the inflation Theory there was a mysterious energy that pushed and accelerated the Big Bang well if we did Collide With Another Universe that would explain everything which idea is closer to you how about the idea of subscribing subscribe there are a lot of unanswered questions in physics how did Universal energy and matter appear where did Gravity come from and much more we've been trying for years to get answers to these questions and one of the people who tried to do this was paramahamsa toari the author of the so-called space Vortex Theory what is this Theory and what does it say about the hidden laws of our universe let's figure it out Pama Hamza tiwari was the former executive director of the nuclear power Corporation India he took the space Vortex Theory or SVT for short first proposed by Renee deart and finalized it he was always inspired by physics and its greates even since his days as an electrical engineering student after rigorous studies of the laws of physics he discovered new equations defining matter and the mass and charge of the electron after that he came up with the SVT this Theory tried to explain the unexplained phenomena in physics including the creation of the electron and gravitational electrostatic and electromagnetic energy Fields as well as other things it also described the six hidden laws of the universe that underly our entire world but first of all let's talk about the theory itself space Vortex Theory suggests that the universe is made up of vortices or swirling patterns of energy and according to SVT these vortices are the fundamental building blocks of the universe they're the driving force behind the laws of physics and the fundamental principles of our world basically everything in the universe is connected and interconnected through these vortices this Theory isn't very based on any real observations but rather on mathematical models and computational modeling for example some computational models showed how these vortices work in hydrodynamics and plasma physics they showed that vortices in such systems can have a central point of Attraction and can be interconnected other models were used to study how the energies inside the vortices move and how they can create different frequencies and vibrations but some experts have criticized SVT for using only models and simulations the biggest criticism is that this Theory can't actually be tested it relies on mathematics and not on some experimental data that's why it's not accepted as a mainstream scientific theory but it's still quite interesting and provides a unique perspective on the universe and our understanding of the laws of physics for example according to SVT the universe has some underlying hidden rules that cause the creation of fundamental matter their assembly and movement what are these laws and what do they say well let's take a look at them law one the universe has only one primordial entity space I.E absolute vacuum that structures matter this law states that space is the fundamental building block of the universe and that it's responsible for structuring matter it suggests that space is the fundamental entity that creates and maintains the structure of matter and that all matter in the universe is made up of the same fundamental particles like electrons and positrons let's try to put it in simple words imagine that the universe is like a big Lego set just like how all the Lego bricks are made up of the same basic building blocks the universe is made up of the same fundamental building blocks too and these blocks are called electrons and positrons but what holds these blocks together space of course space gives it shape and structure just like how the plastic container holds all the Lego bricks together in a set so the first law states that space is the fundamental building block that structures matter and holds everything together in the universe law two matter is constituted with multiples of only one kind of fundamental particles electrons and positrons this law states that all matter in the universe is made up of the same fundamental particles the electron and positron these two are the Lego blocks we've talked about before and according to the second law these tiny invisible particles make up everything from a tiny atom to a giant Galaxy just like no matter what the shape or size our Lego build is it's still made up of the same building blocks law three the field distribution in space as recognized by contemporary physics linked with and emanating from matter are effects arising from only one fundamental field in space this law states that the fields recognized by contemporary physics such as the electromagnetic and gravitational fields are effects arising from a single fundamental field in space it suggests that this fundamental field is responsible for creating everything that we observe in the universe so let's try to put it simply this time imagine that the universe is like a big playground all the different fields we observe such as the gravitational and electromagnetic fields are like different games we play in there but no matter what we play we're still in one fundamental space this is the playground itself it's the base that holds everything together according to the Third Law Without The Playground we wouldn't be able to play any games and without this fundamental field in space we wouldn't be able to observe any fields in the universe law four there is no void in space anywhere in the whole universe except at the centers of the fundamental particles of matter electrons and positrons this law states that there's no truly empty space in the universe and that all space is filled with the fundamental field the one we talked about before it says that electrons and positrons can be found everywhere and even the things we consider to be empty like vacuum are actually full of tiny particles and according to this law the only truly empty spaces we can find in the universe are at the centers of the fundamental particles electrons and positrons law five from only one fundamental Universal constant all the constants considered universal in contemporary physics are derivable this law states that all the constants considered universal in contemporary physics can be derived from a single fundamental Universal constant it suggests that all the constants in physics are interconnected and can be explained by a single fundamental principle I know you've been doing a lot of imagining lately but bear with me this time please imagine the universe as a big recipe all the constants in physics such as the speed of light the gravitational constant and the plank constant are like the ingredients they're very different and there are tons of them but just like how all the ingredients in a recipe are interconnected and come together to make one dish all the constants in physics come together to make the universe and just like how a recipe has a main ingredient that holds everything together physics also has a single fundamental constant that holds everything together law six the spatial structure of sub microcosmic fundamental matter is repetitive uniformly in the spatial structures of macrocosmic bodies like planets stars and galaxies this law states that the structure of the fundamental particles that make up matter is repetitive and uniform across all scales from subatomic particles to macrocosmic bodies like planets stars and galaxies it suggests that the same fundamental principles govern the structure of matter at all scales let's go back to the analogy with the recipes and cooking using different ingredients and combining them in different ways the chef can create new dishes these will all be different different dishes and they can be very simple or very complex but when creating them the chef still applies the same basic rules and knowledge they have right and just like that the Universe also creates different structures from atoms to planets stars and galaxies but it still uses the same fundamental principles to create all these things so this law suggests that the structure of the fundamental particles that make up matter is repetitive and uniform across all scales these are the six fundamental laws of the universe according to the SVT and even though it's not accepted by mainstream science it's still a pretty interesting [Music] concept look at these two pictures at first glance one might think well aren't they showing the exact same thing truth is they don't but both these subjects are some of the most complex structures humans have ever had the chance to study the first image shows a cluster of galaxies from our universe the second is just a small neuron in the human brain after seeing these images some were quick to compare them is the universe nothing more than a huge brain now let's not get too excited before we go into describing all the similarities between the universe and the human brain there is something we need to be aware of it's a little thing called aania and it's it's when our brains make up similarities between two objects that are seriously unrelated the best example is when we look at clouds and start to see all sorts of cute animals and weirdly shaped objects we might be doing the same thing when looking at those two initial pictures maybe it's just our brain making up similarities where there aren't any some scientists became fascinated with this huge brain Universe idea they wanted to make sure it was not just a weird coincidence there had to be a way they could measure How the Universe compares to the mushy organ inside our heads so they started with the brain it's probably one of the most complicated things we know in the whole universe that's because it's packed with more than 80 billion neurons these cells are responsible for taking information from our senses and sending out messages all over our body try to think of neurons as workers in a factory they don't just do their work they actually communicate with each other thanks to these elements called axons and dendrites the axons are responsible for carrying electrical signals away from the neuron's body to other neurons or muscles dendrites on the other hand have the task of receiving that information all of them together make this Mega network of about 100 trillion connections the universe is one big social network itself too but this time it's made up of galaxies you might picture the universe as stars and planets with a ton of empty space between them it's not quite right what we can see and measure is known as the observable universe and it's really vast think about 90 billion Lighty years across containing hundreds of billions to maybe a few trillion of galaxies these galaxies like the one we're standing in at this very moment are bundled together in groups our Milky Way is friends in a way with galaxies like Andromeda and triangulum and altogether they're a family called the local group this family of galaxies is part of an even bigger Bunch called the Virgo super cluster from what we can tell the space between them might not be empty it's filled with these threads made up of regular matter but there might also be this mysterious Dark Matter doing its thing scientists didn't stop there they decided to take it a bit further they started by examining thin slices of the human cortex the part responsible for our thoughts memories and even our Consciousness The Next Step was to compare them with equally thin slices of the Universe from a computer simulation now it's obvious there's this enormous size difference between the brain and the universe but the way they looked at it kind of made them somewhat comparable as they zoomed in think 40 times magnification these scientists began noticing that the structures were very much alike at this Zoom the brain's neural network looked like the universe's Galaxy clusters to make sure they weren't just imagining things they used two clever methods the first one looked at how these networks connected and how densely packed they were they noticed that the middle part of a neuron or its nucleus is way tinier compared to its connecting fragments likewise Galaxy clusters are tiny when you look at the super long connecting thread between them the second method was about checking how organized these networks were versus just being random they looked at how everything was structured around each connection Point whether it was a neuron in the brain or a Galaxy cluster in the universe the resemblance doesn't stop there we know that our brain is mostly water about 70% to be precise now the cosmic web in space it too has about 70% of something only this time it's dark energy water and Dark Energy may not be the most important elements in each of their structures but they might still play a part in how everything sets up the analogy continues you see the space we' need on a computer to map out the universe is almost the same as our brain's memory storage somewhere in the ballpark of 2.5 pedabytes so theoretically a chunk of the universe could fit in our brains or flip that and our entire life's memories could get stored in the universe's Network there are differences too and we have to be aware of them to make sure we're assessing things properly for starters the universe is pretty much the same all over it doesn't change its composition that much regardless of where you travel in the observable area but our brain not so much different parts have different jobs also our brain connections send information depending on things like what you're seeing or touching on the flip side the universe's links are Just Energy there's also a difference between how these two structures came to be it turns out that the patterns we see when we're gazing up at the stars are all shaped by gravity and some weird unseen Force called Dark Matter massive fireworks in space called Supernova can also affect this Cosmic wallpaper on the opposite side of the spectrum our brains got their shape From Evolution that long process where animals including us get to pass on the best features and data they've learned to their offspring so if a trait like a certain shape of the brain helped our ancestors Dodge a hungry tiger that trait got passed down our brains are also built the way they are because they're supposed to act like a super highway for our thoughts quick thinking was crucial for people back in the day when they needed shelter from wild animals or the elements now especially if you're you're a fan of sci-fi literature you might be wondering if the universe is like this immense brain what might its body look like we might as well be living in someone else's head we like to think of humans as evolved intelligent and at times hard to understand creatures but what if we're just tiny neurons in a larger more complex structure well for the time being we can only let our imaginations run wild there's no way we can test at this point what's outside our universe by all means we don't even know how large It Is by looking at the parts we can see the estimations are that the universe is about 95 billion light years in diameter even if we'd somehow manag to travel at the speed of light though that seems a bit impossible at the moment too it would take an enormous amount of time to reach those supposed edges of the universe there's also the theory of the Multiverse we don't have much tangible proof of this idea either but it does claim we live in a universe out of many ours has time and space other worlds may have different rules and components life may look differently out there in ways we can't even understand having a better understanding of the universe is just as important as figuring out our brains you see we still have many Unsolved Mysteries right here under our noses or behind our noses to be more precise there are a lot of things we've yet to figure out about the human brain like how we store and retrieve memories we know that each time we learn some new piece of information our brain changes but we don't have the entire process mapped out and it looks like it might take a while before we fully understand it imagine the universe as a gigantic elastic balloon that's steadily being inflated that's what Dark Energy seems to be doing forcing galaxies further apart could this Force lead to the end of the universe some scientists do think so and they've named this potential event the Big Rip it's challenging to study Dark Energy even though it's one of the most fascinating aspects of our Cosmos that's because it's only visible effect is this gentle stretching of space on any smaller scale it's virtually undetectable compared to Dark Energy studying Dark Matter feels like a walk in the park even though it's just as invis I Dark Matter leaves clear evidence of its existence it latches onto galaxies and Galaxy clusters bending light and altering gravity dark energy on the flip side just expands nonetheless scientists have found ways to examine it mostly by observing the universe's expansion as WE peer into the distance we are in fact peering back in time tracing the universe's Evolution Dark Energy could also bring about about the end of the universe in a massive catastrophic event imagine watching helplessly as reality itself tears apart with no hope of Escape frighteningly it's not some far-fetched scenario the available data does not eliminate the possibility of a big rip is dark energy a force that keeps inflating the universe or is it more like a separator if two galaxies are far away from each other they're driven further apart leading to increasing Cosmic isolation but anything that's already a strong structure stays intact immune to this divisive Force why doesn't it mess things up you ask well it's because Dark Energy remains consistent as space grows bigger the density of dark energy remains steady imagine drawing a circle anywhere in space taking note of the amount of dark energy there do it again after a billion years and guess what the the amount of dark energy inside your circle won't change even though space itself has expanded that is unless of course dark energy has a trick up its sleeve and proves to be more potent than a cosmological constant all we know for sure is that it's something that drives the universe to expand more rapidly or to put it another way it creates negative pressure now negative pressure might sound odd pressure is usually seen as an outward Force right but in the universe it behaves differently pressure is a type of energy like mass that attracts rather than repels all these calculations are what makes the Big Rip picture a slow unraveling movie the first objects affected are the most massive Loosely bound structures like giant clusters of galaxies their gravitational pull will start weakening causing them to drift away into the growing Cosmic voids next we notice stars on the outskirts of our galaxy not following their usual paths but instead drifting away like party guests saying their goodbyes the night sky would then start to dim as our Milky Way would gradually evaporate the disaster would just Accelerate from there the orbits of the planet would begin to shift spiraling outward just months before the end after we've lost the outer planets Earth would drift away from the Sun and the Moon from Earth we would plunge into the darkness alone the Stillness of Solitude won't last however any remaining structure would be destroyed because of the expanding space the Earth's atmosphere would start to thin gravitational shifts would cause chaotic tectonic movements in the final hours Earth would fall apart Beyond this point the destruction would continue unseen nuclei the ultra dense cores within atoms would disintegrate next black holes dense cores would get obliterated in the last instance space itself would just r rip apart bad as it may sound we may never rule out the threat of a big rip however it might takes so long that all Cosmic structures will have decayed before it happens a rough calculation suggests the earliest big rip could be in about 200 billion years technically the sun still has about 5 billion years before it fades away naturally so by the time this event might happen our solar system would have long been gone nonetheless give us the possible implications scientists are placing a high priority on understanding the big RIT let's be optimistic though I mean if we look at the universe's history we should consider ourselves lucky we're in what cosmologists refer to as the lumeris era it means that right now the universe is still pretty busy producing new stars and we know how important these celestial bodies are for maintaining Life as we know it however the Golden Age of star formation was about 10 billion years ago ever since that Peak the rate of creating new stars has been on the decline now why is the universe taking this early retirement it's not because it's lazy or tired in fact it's exactly because we're living in this expanding Universe for a new star to appear a bunch of matter needs to be squeezed into a relatively small space it's like trying to stuff all your clothes into a very very small suitcase as the Universe expands the matter is getting spread out leading to less and less room in that suitcase for creating new stars the big freeze another theory related to the end of the universe looks at this scenario Stars will become IND dangered and then extinct species this period of star decline is what astronomers like to call the degenerate era it's estimated to start about 100 trillion years into the future what'll be left in the night sky at at that point only the hardened workers of the universe white dwarfs neutron stars and black holes white dwarfs and neutron stars the remnants of medium and large stars that have exhausted their nuclear fuel will eventually cool off and transform into black dwars these black dwarfs are like invisible Cosmic Spirits just hanging around without doing much inert and unseen other neutron stars too heavy for their own Good Will stumble under their weight and collapse into black holes further into the future the universe will become a black holes only party but even these Cosmic weirdos can't cheat time forever black holes can fade away too in fact this idea of fading black holes came from a brilliant mind you might have heard of Steven Hawking he suggested that black holes slowly shed energy in the form of radiation until they shrivel up like raisins and evaporate completely eventually every single black hole will have evaporated will be left with a universe in its Twilight years settling into its final age aptly named the dark era at this point both light and matter will be nothing but Distant Memories and then well nothing if this big freeze theory is correct the universe will just remain in a quiet dark State stretching into an eternity where nothing else ever happens most of these theories seem to rely on the fact that the universe is is expanding but what exactly is it expanding into we can't help but wonder if there's something else beyond our universe right now this question is one for which physics doesn't quite have an answer for we don't have enough facts one suggestion is that time and space came to be with the big bang that happened around 14 billion years ago so logically there's nothing beyond the universe however a huge chunk of the universe is way out of our sight existing beyond the part we can observe which is about 90 billion Lighty years in diameter because everything's pretty much the same wherever you look in the universe we can presume that the bits we can't see would look pretty much like the parts we can but that's just an assumption now if the universe is infinite there's nothing Beyond it right I mean that's just what infinite means on the other hand if it's finite and growing you'd start to wonder if there's a boundary or an edge like a un ival Cliff that separates our universe from whatever is beyond it it gets even more complicated when you realize the universe has at least four dimensions three for space and one for time and it's pretty much impossible for us to picture what that might look like now when we say the word Universe we're already picturing this vast space filled with stars planets and comets truth is most of us find it hard to actually picture how large the universe is well try to think of space as the biggest playground you've ever seen right now our space playground goes on for 46 billion light years it wasn't always like that on that note you've surely heard of The Big Bang Theory let's try to unpack it imagine the whole wide universe every Star Planet down to the smallest particle squished into a tiny super hot ball the size of let's say an apple from that point on we've got a pretty neat road map of how things unfolded in the cosmos dive even deeper into the universe's past and things start to get a bit blurry the energies and temperatures rise and suddenly our rule book of physics doesn't make sense anymore when we reach these Early Times gravity that force that keeps our feet on the ground starts acting all mysterious this is where we bump into the great puzzle of our time Quant quum gravity and here's the honest truth we still got some homework to do on that one what made the Big Bang go pop in the first place well it's kind of like asking what happened before the first page of a book there's no page zero or at least that's the answer that quantum physics provides it tells us that there are events in the universe that just you know happen it's not because we're not looking where we should it's just how the universe works or at least that's our current understanding of it right after the blast everything was just a bubbly mix of gas like this soda can that just got open this gas which was mainly helium and hydrogen began to stretch out and cool down if we could time travel to those times we'd see a younger hotter and Cozier Universe cool telescopes like the Hubble and James web let us Peak into those ancient times and what we see is fascinating earlier galaxies were like the cute photos of the Universe when it was younger tinier less heavy and not as evolved as they are now over billions of years the universe stretched out like a soap bubble imagine countless shiny marbles inside it representing stars and galaxies as the bubble grew bigger the marble spread out today inside our bubble we have trillions of galaxies for every single Galaxy we can spot there are tons more we haven't seen yet some are too tiny others are are too far away we still can't see them even if we use the fanciest telescopes available just to paint you a better picture know that today our very own Milky Way is home to around 400 billion stars similar to the sun it was a lot different in the past though our galaxy began its Journey like a little bundle of stuff just a tad denser than most things in space A lot of it was actually made of Dark Matter our closest star friend named Proxima centuri is 4.2 ly years away to put that in Earthly terms it's like taking a road trip around our planet millions of times it's also about the same age as the sun if we could have looked at the exact spot about 5 billion years ago it wouldn't have been there at all many stars live together in groups kind of like families however most are Solo adventurers experiencing the vastness on their own when you zoom out from our Milky Way and Peak into the larger universe it's more well empty like a vast piece of Countryside between big cities in our Cosmic area we've got some cool neighbors the Andromeda galaxy for instance is just to stroll away in Cosmic terms at 2.5 million light years and there are lots of smaller galaxies too like the triangulum Galaxy and the large melenic Cloud our local hangout spot which includes all these G galaxies spans about 3 million light years as we explore further galaxies seem to gather in clusters like suburbs connecting these clusters are threads of galaxies creating a giant web in the universe galaxies are clustered this way because just like magnets they love to pull stuff towards them if we could turn back time we'd see a different picture that's because throughout history the popular galaxies with lots of stuff became even bigger while the less popular ones gave their items away from Earth we can only see objects that are 46 billion Lighty years away at the most if we put all this space into a giant box its volume would be unimaginably huge the main reason our universe is such a grand spectacle today is that it's been growing non-stop every year its size increases a little more in fact the universe is expanding faster than the speed of life sure we can't feel it down here on Earth but there are clear signs in the universe that it's happening we're still not sure why the universe behaves like that but scientists are working hard to figure out this mysterious expansion our understanding of the universe has changed a lot over the years too back in the day when our world had more trees than buildings people from all corners of the Earth would gaze up at a twinkling sky above for many the sky was their road map alarm clock and spiritual connection point now imagine not having a smartphone or a compass and still being able to find your way home or knowing when to plant your crops that's because our ancestors had the sky they knew when it was time to take care of plants navigate ships or celebrate special occasions all by watching the stars and planets long ago people in Babylon spotted some stars that behaved a little weirdly these Stars seem to have a mind of their own obviously we know now that they weren't stars at all they were planets like Venus and Mars that sometimes wink at us down here there was also a time when we beli the Earth was flat well at least some people did before Greeks in the 6th Century BCE figured out that it's round they even managed to guess its size by watching shadows in different places they were pretty close with their estimations especially if you take into consideration their limited tools now speaking of our planet there was also a time when humankind believed the Earth to be the center of the universe we also believed everything else was just spinning around it that was until a man named cernus did a bit of research and figured out it was actually the sun coordinating all the movement in our system and soon after other thinkers and stargazers joined in on the fun changing how we perceive the universe using new tools speaking speaking of tools thanks to a telescope Galileo found out that Jupiter had massive moons tagging along we call them the Galilean moons today in his honor but the universe kept tossing surprises our way some people started cataloging Stars clusters and nebula While others found mysterious rays that our eyes can't see and just when we thought we had it all figured out Edwin Hubble not the telescope but the man behind the name discovered something amazing too he realized that other galaxies are in fact moving further away from us these days we're looking at the universe in a different way we know how the timeline works now we know that our time here on Earth is limited no wonder astronomers are eagerly scouting through the vastness of space looking for planets similar to ours there is no other planet that can safely accommodate us in our solar system but we can use our neighboring planets and satellites for science ific purposes take Mars for instance in the following decades NASA is planning to send all sorts of devices and even people up there if the experiment proves to be successful we might end up living there for a while or at least use it as a pit stop for our next exciting destination we've never sneaked a peak Beyond the Edge of the observable universe what lies there if we managed to get there would we find another Universe what if the universe we live in in is just one of billions of trillions of other universes I'm talking about the concept of a Multiverse now look there's this idea of parallel universes let's take one of them it looks exactly the same as our universe and still some details differ maybe instead of becoming a doctor you chose to start a music band there maybe one Infamous asteroid changed its trajectory and Dinos are still roaming Earth in that universe but the Multiverse Theory takes it all one step further those who believe in it state that there might be countless realities according to this Theory we live in a bubble that is just one of many other bubbles which I guess looks like bath foam these bubbles constantly bob up and vanish multiverses are described by a few scientific theories which mention various possible scenarios from separate universes that keep springing into existence all the time to regions of space that are in different planes than our home universe but there's one thing these theories agree upon all of them suggest that the space and time we observe is not the only reality you see it's impossible to explain all the quirks of our universe if it's the only one to exist so it's either inventing newer theories that can throw light on certain properties of our universe or accepting the fact that we're living in just one of many many universes all of which are different one of the most widely known Multiverse theories is called inflationary cosmology this is the idea that right after the big bang the universe expanded rapidly and exponentially indeed Cosmic inflation does explain lots of the properties of the universe we observe for example the distribution of galaxies when this theory was suggested for the first time it was perceived as a piece of Science Fiction but it can indeed explain tons of interesting features of the world we live in so with time people started taking it seriously now the theory states that inflation might happen again and again maybe even infinitely and this could create constellations of bubble universes of course none of these bubbles will have the same properties as ours there may easily be places where physics as we know it doesn't exist but even though some of these universes might look like ours they all lie Beyond The Realm we can observe directly another theory called the many worlds interpretation claims that there might be multiple branching timelines or alternative realities and in each of those real ities our decisions play out differently which also means very different outcomes at the same time the only reality you can perceive is the one where you live if it's true then the question is where are all those other universes well they most likely all overlap in Dimensions we absolutely can't access and at the moment it's not possible to travel between universes but who knows maybe a few thousand years later people will not only find a way to prove that parallel universes exist but also o invent a method to hop from one of them to another unfortunately so far there's no solid evidence that multiverses exist all the proof we've got today is purely theoretical some experts even argue that it could be an unbelievable Cosmic coincidence that the Big Bang created such a perfectly balanced universe as ours or if parallel universes do exist we might have just inhabited the one that had all the right conditions for our survival it's still unclear whether the Multiverse theory is even testable perhaps we just haven't thought of the right tests yet now I've got one scary thought for you to consider what if at one point you stopped existing in your home Universe the one you were born into what if your Consciousness was transported to a parallel universe where you're now watching this video think of [Music] this there's this mysterious thing in space an unusual spot that scientists haven't been able to explain for more than 15 years there are different theories and one of them says that maybe this is an imprint from a collision with a parallel universe is this true well let's see take a look at this map this is the map of our universe well not really this is actually the map of cosmic microwave background radiation or simply CMB many many billions of years ago there was a big bang it was so powerful that it created our entire universe and of course such an event couldn't occur without leaving some consequences and these consequences are literally everywhere the Big Bang left electromagnetic radiation which we know as CMB we don't notice it in our daily lives but it's literally here under our noses and if you had some kind of superhuman Vision you would see how everything around you shines with this dim light this radiation is very important if we hadn't discovered the CMB we would never have found out about the Big Bang previously scientists believed that the Universe had always existed there was no beginning and there was no end it sounded pretty ridiculous to us now but less than a century ago people were Absolut absolutely sure of it Steven Hawking was one of the first scientists to Guess that the Universe did in fact have a beginning the guy was so cool that he realized this as a student while working on his doctoral dissertation but unfortunately he had no proof if there was such a strong bang billions of years ago then where are the traces where's the proof laughed people who believed in the Eternal static universe theory but don't worry they had the proof rubbed in their faces real soon in 1965 astronomers Arno pienas and Robert Wilson discovered CMB and that was the first grandiose proof of the Big Bang it turned out that radiation was everywhere we just didn't notice it in fact at first penzes and Wilson themselves mistook it for the noise of a big city or pigeons or something else for their discovery which turned turned the world of science upside down they received the Nobel Prize all right so people learned that they were surrounded by electromagnetic radiation then they started collecting more data about it they accumulated more and more info over the years until they made this very map this is a map of CMB temperatures but while creating it scientists discovered something unusual let's take a look at this map it looks like a large and diverse pattern of cold and warm places but in reality our universe is quite uniform all temperatures on this map are close to -45° F with very little difference all temperature fluctuations between these places are small and each tiny spec actually spreads over millions of light years so everything in our world is pretty calm and stable except for one point this cold spot right here astronomers first discovered it in 2004 first it looked like nothing unusual it's just a region where the temperature is below average for a couple of micr Kelvin but remember we're not talking about a small area this is a giant cold region it's literally billions of Lighty years in size wait the scientists thought this can't be true the universe should be consistent everywhere according to our our standard model this cold spot simply shouldn't exist but it does exist though this isn't just some mathematical error it's right there so what is this cold spot and how did it appear astronomers have been trying to find the answers to these questions for years even now we have only a few theories so let's discuss them all Theory one Cosmic texture this idea was brought up at the end of 2007 then scientists suggested that this cold spot could be the hills of space in other words it may be a bumpy region of the universe just part of its texture but that's a silly explanation so this theory was quickly discarded Theory 2 the supervoid this hypothesis was considered the most plausible for a while it's stated that the cold spot was actually the so-called super void it's a terrifying dark place of our universe with almost no galaxies and because it's an empty region with almost no stuff in there it seems cold to us however this theory was refuted in May 2017 after carefully examining the cold spot scientists found out that there were no signs of a supervoid there moreover voids and super voids which actually exist by the way are still very small in size the cold spot is literally thousands of times bigger than them so there must be some other explanation and there is one perhaps the most bizarre of them all Theory 3 a parallel universe this controversial idea was put forward by cosmologist and theoretical physicist Laura merini hotton she suggested that the cold spot could be an imprint from the Collision of our universe with a parallel one standard cosmology cannot explain such a giant cos MC hole says merini hoton this is the unmistakable imprint of another universe beyond the edge of our own her assumption is based on the theory of the Multiverse this Theory says that there's actually an infinite number of universes like ours in the world they constantly collide with each other giving each other a push which creates a new Big Bang so maybe the cold spot is a bruise from such a collision for quantum mechanics mecs such crazy theories are pretty common but for standard physics and our simple understanding of the world this is Earth shattering of course we need strong evidence and merini Hon's team has begun to work on it Professor Tom Shanks from the center for extra Galactic astronomy at Durham University also participates in this research the craziest sounding of the Exotic models for the explanation of the cold spot the Multiverse is actually the most standard in terms of our current model of the universe he wrote in one of his works so what evidence do we need well our cold spot is located in the southern hemisphere according to Shanks If there really was a collision between two universes we should find another cold spot and it should be in the opposite Northern Hemisphere if astronomers actually found it this Theory would be confirmed and it' become the first proof of the existence of a parallel universe but it's not that easy to find a second spot we need the latest highly sensitive telescopes we also need to find out some info about the nature of dark energy how it affects space and in other words there's still a lot of work to do not so long ago scientists actually believed they had discovered the second spot researchers from New Mexico thought they had found it in the northern hemisphere but unfortunately this is likely to be a mistake the map these researchers used had a high measure of Randomness so it's possible that their Discovery is just an accident caused by other voids so basically we haven't found another cold spot so far despite careful analysis but again even the best modern equipment is not perfect and it doesn't mean that there's no second spot it just means that we haven't found it yet but if one day we did find it it could changed the world of science forever we'd confirm not only the theory of parallel universes but also the famous String Theory it could explain everything that occurs in our world but if this happens we'll get even more questions than we already have how did these two universes Collide how does it all work so far it's all just guesswork we can't claim that the cold spot is a print from the Collision of parallel universes but we can't refute this either actually we may never know the truth at all but it's still interesting to strive for it how was our universe born and if this seems hard to answer then how about this what was before our universe while scientists are looking for the answer to the most difficult question in history let's find out what they've come up with so far in the 20th Century we've shed the light on this mystery all thanks to this man Edwin Hubble one day on Mount Wilson in Southern California he aimed his telescope at the sky and found out that these random clouds of gas flying everywhere are actually other galaxies and there are a lot of them and also he learned something else something that changed the world forever they're moving so what you may ask well it meant one very important thing the universe is expanding and if it's expanding then it probably had a beginning somewhere right now all we have to do is run time backwards and see where the beginning was it took the scientists many more years to come up with a full-fledged Theory The Big Bang Theory and here it is nothing has ever been anywhere because neither when nor where existed do do you get it but actually no there was one thing it was the so-called Cosmic Singularity a state of our universe in which it was incredibly small dense and very hot imagine if our universe was compressed into a small ball the pressure and temperature inside would be enormous at some point it became impossible to withstand them and here comes the Big Bang it was an out out burst of energy and matter that created everything we see now time and space basic physical forces it also scattered quarks everywhere these quirks tiny particles that make up our world were all boiling in an incredibly hot Cosmic broth when it cooled down gravity began to attract them to each other they gathered into atoms then molecules and then into the first objects into the world stars and all this happened just some 12 to 14 billion years ago all right now we know how our universe was created but what was before that Alan Harvey Guth an American theoretical physicist and cosmologist has devoted his whole life to solving this mystery after learning about the Big Bang Theory Guth found some flaws in it for example the distribution of matter was very even although it shouldn't have been let's hang a balloon filled with paint to the ceiling and lay a white canvas on the floor if we drop the balloon down it will burst and we'll see absolute Chaos on the canvas a bunch of spots scattered everywhere randomly neither is like the other but that's not really what the universe looked like instead of throwing a colored ball from the ceiling let's draw a small red dot on the canvas now let's expand it a little more and more and capture this all on frame by frame shooting we'll see a circle gradually growing in all directions that's the reality the early Universe was very even and proportional that was guth's Discovery the theory of inflation here's what it says even before the Big Bang there was some kind of force that could give the bang a strong acceleration something that was able to distribute everything in space instantly and evenly guth's theory was a success and now most scientists rely on it for most of them this idea of the birth of the universe is quite enough for most but not for all Martin bojowald is a German professor of physics and in his opinion the universe was born quite differently remember when we talked about Cosmic Singularity the state of the universe in which it was small infinitely dense and super hot according to Martin's Theory The Singularity couldn't just appear out of nowhere this is nonsense but then where did it come from let's look at a pendulum on an old clock the pendulum rotates back and forth its movement is smooth continuous and non-stop this is how we usually see time it flows and never stops but Quantum time ho ho Quantum time doesn't work that way it's more like the second hand of a clock it consists of small segments and makes short pauses and just like with the second hand of a clock the beginning of one segment of time is always the end of another see what I'm getting at let's go back to balloons again according to the Big Bang Theory Once Upon a Time our universe began to expand inflate like a balloon but sooner or later it will blow away back the universe will start shrinking and return to the state of cosmic Singularity and then guess what the big bang too nothing appears out of nowhere and disappears into nowhere according to boal's Theory the beginning of each universe is the end of the previous one our universe is not at all the first and not the last millions of similar universes existed before us and will exist just after us this Theory although it sounds very logical is far from complete unfortunately we don't have enough knowledge to find all the evidence for it so for now all this is just a hypothesis but some people come up with even stranger ideas scientists promote such unusual theories that no one could even think of Neil Turk a South African physicist and his colleague Paul steinhardt an American theoretical physicist look for answers far beyond our universe they say that yes our universe isn't the first one there have been and will be an infinite number of them and not only will there be endless Big Bangs our universe is just one of an infinite number of others and all of us are stuck in a cycle of endless rebirths of parallel worlds this sounds incredible and frightening at the same time but how does it work according to this Theory our universe is located inside a so-called brain as in membrane in other words we're stuck in some kind of elastic surface that's capable of Contracting stretching oscillating and so on like pieces of fabric on a rope these parallel universes are located near each other each one has a neighbor we're not the exception another universe may be an inch from ours but we can't see it that's because there's a tiny space between us and this tiny space contains the fourth dimension how do these universes originate through brain Collision these brains are getting closer to each other very very slowly until one day they finally Collide their Collision creates two big bangs and two parallel universes then they're moving away from each other the created worlds continue to live we're currently at this stage but when they disappear the brains Collide again and this will lead to the birth of a new universe remember the inflation Theory there was a mysterious energy that pushed and accelerated the Big Bang well if we did Collide With Another Universe that would explain everything of course everything described here is a great simplification when you hear that our world is some piece of fabric on a Robee it sounds like complete nonsense but this idea is based on string theory and M Theory two giants of quantum mechanics if they turn out to be true they could explain almost everything in our universe creating a theory is an incredibly huge process tur and steinhardt made a huge amount of calculations and swept away many many non-working theories also to work this out they have to overcome the limits of the human mind and think in 11 Dimensions at once unfortunately this crazy and elegant idea was laughed at turo and steinhart say that scientists are regular people just like everyone else they're also afraid of change and the unknown and it's really scary to question everything we once believed in many years ago people didn't believe that the Earth was round then they were outraged by The Big Bang Theory we can't make discoveries without struggle and fear that that's why Turk and steinhardt don't plan to give up so easily after all the evidence that we have now only says that each of the three theories is equally possible so which answer is correct we may never know at least not at this stage of human development unfortunately as long as we have no evidence we can only theorize but maybe one day we'll find something that will open our eyes once and for all maybe one day we'll solve the mystery of how our universe came to be 13.8 billion years ago a mysterious explosion happened in space it was chaos a time when the stars planets asteroids the rest of the space bodies and galaxies were born it was the Big Bang a theory we all know about but no one knows for sure what happened where the universe came from and what was there before some even think the universe went through a cycle where it contracted and expanded several times in 1991 a cosmologist from Stanford University named Andre Linda had submitted an article with the main idea that there was a possibility the universe had been created in a laboratory his theory said there was a chance an advanced civilization somewhere out there had created our universe this civilization has made an entirely new Cosmos that later revolved its own planets stars and intelligent forms of life 30 years later many scientists take this Theory pretty seriously they even started talking about things that we as a civilization can do to get to such an advanced level the theory says this Advanced civilization decided to add technology that helped to create a new universe out of nothing it happened through Quantum tunneling it's when an atom can appear on the opposite side of some barrier even though it's supposed to be impossible considering the laws of physics of our world like if you wanted to pass a tall wall but you can't pass it with ladders or go around somewhere imagine you can just walk through it like a ghost in our world it's not possible but a more advanced civilization perhaps can do it plus they realized how they could create new universes right now on the cosmic scale we could be a Class C civilization we don't know how to recreate something for example conditions on the earth for when our Central Star the Sun goes out if we manage to become a Class B civilization we'll learn to adjust conditions to be independent of the Sun that means we might be able to learn how to live even without it and if we level up and become Class A we'll know how to recreate Cosmic conditions and produce our own Cosmos in our Laboratories we think of the world we live in through three dimensions of space each east west north south and up down there's also one dimension of time which means we can distinguish past from future a Fifth Dimension would represent one more extra dimension of space the theory of its existence was first mentioned in the 1920s it was inspired by the theory of gravity by Albert Einstein who said SpaceTime is Warped by matter and energy we can't perceive these four dimensions but we see how an object moves and attribute it to gravity and maybe there's some other Force like the electromagnetic force that's more than 1,000 times stronger than gravity that could explain things going on in that extra dimension of space The Fifth Dimension is curved in a way we can't see it but the idea about it was mentioned in a string theory it considers the universe as really small strings of mass energy not as particles they vibrate in 10-dimensional SpaceTime considering six dimensions are rolled up way smaller than a single atom that led to the picture of the universe as a 3D Island that floats in 10-dimensional space time also The Fifth Dimension might be an excellent explanation to tell us more about Dark Matter that's the invisible stuff with a mass but we can't see it nor can it interact with ordinary matter and dark matter is 85% of all the matter in our universe the universe can't be still it's constantly in motion either Contracting or expanding we used to think there were 100 billion galaxies but it turns out there are more than a trillion the galaxies are moving away from each other this is what it means when scientists say the universe is expanding all the time there are voids between galaxies that sometimes stretch millions and millions of light years across they can seem empty but they can also contain way more matter than we can find in galaxies still Stars usually can't be formed there because the matter between those areas has lower density but there's still plenty of so-called Intergalactic Stars a good example is the Virgo Galaxy cluster 10% of which are Intergalactic Stars we don't know how exactly they got there but there are two possible ways one Stars can Collide merge or pass close to another galaxy which can kick it off from its parent Galaxy option number two a super massive black hole can accelerate a star to very high velocities if they have a close encounter which can again make a star be expelled from its parent Galaxy if you could have a giant magnet you could even pull something out from the vicinity of a black hole that's possible if the magnetic field near a super massive black hole is as strong as the black hole's gravitational field but it doesn't work if we're talking about material that's already beyond the black holes Event Horizon that's a spot with a gravitational force so powerful not even light light can get away you'd need to accelerate this material to the speed of light at least to get away for that you'd need an infinite amount of energy but a magnet could help if something's heading toward the black hole but didn't get inside yet when someone mentions a black hole you might get a picture of some giant void in space but the Milky Way is most likely full of thousands of smaller black holes that float around the Galaxy when a star comes to its end it will destroy it itself in a supernova explosion which is a cataclysm of energy in that explosion the densities in the core will reach an intense enough state that nothing will be able to escape at the same time the major part of the star explodes outward but a part of it collapses inward creating a black hole the bigger the star the bigger the hole the black hole then swallows everything that comes in its way including other stars as well when a star gets sucked up into the black hole it's ripped apart because of the strong gravity inside the black hole some of its parts fall into the black hole While others get ejected at incredibly high speeds some black holes might have been formed in a different way the early stages of our universe were to say the least pretty chaotic it had high temperatures and pressures and was in a state that shaped the entire Cosmos under the right conditions any old gas patch may have shrunk itself to become a black hole and they came in many different sizes from something that weighs a couple of pounds to Giant masses like thousands of suns and those in between they aren't really black black holes are areas with strong gravity and no object can escape when it gets inside they feed off electromagnetic radiation such as light and space particles since they're consuming matter all the time black holes give off a dark glow the Earth is not that close to the inhospitable edge of the solar system we're the sixth planet from it scientists made a pretty cool 3D map of our solar system where we can see what the edge looks like it took them 13 years to design it the boundary is called the outer heliosphere it marks the area in space where the solar wind which is the stream of charged particles our sun emits gets deflected and draped back by the radiation coming from the empty region beyond our solar system the inner layer of the heliosphere is where the sun and the planets have a rough shape of a sphere while the OU layer is not that symmetrical this asymmetry happens because our sun is moving through the Galaxy and goes through friction with the radiation in front of it black holes tearing apart enormous Stars Pulsar spinning at incredible speeds and emitting powerful beams of energy colorful nebula with fireworks of newborn Stars galaxies of every possible color and size all of these are found within our universe but it's not infinite it has a boundary a literal wall and beyond that there's an absolute nothingness right now we're going to make a journey to that wall but first things first our universe is like a humongous nesting doll if you open it up there's a smaller one inside it's a Galaxy inside that is an even smaller doll that's our solar system and the smallest doll of all is the earth each of these dolls has boundaries that we are going to cross for that we'll need a space ship and a big one it also has to be able to move a 100 times faster than the speed of light you get on board and start the engines 62 Mi above sea level is our first boundary that's 10 times higher than passenger planes fly this point is called the Carmen line it separates the atmosphere of the Earth from outer space now we fly further to the edge of our solar system we turn on the hyperdrives and fly past Mars Jupiter Saturn Uranus and Neptune we've traveled a distance of 100 astronomical units 1 Au is the distance from Earth to the Sun and here's the boundry of our solar system the heliosphere here the speed of the solar wind decreases rapidly first it drops from 620,000 mph to the speed of sound then there's a layer called the heliopause this is where the wind almost vanishes and then our ship experiences a bow wave this is where we feel the force of of the interstellar wind which collides with the boundary of our solar system when you pass this boundary you find yourself in the dark of interstellar space and here you can find two human-made objects that made this trip for the first time in history their Voyager One and Voyager 2 Voyager 1 crossed that boundary in 2004 Voyager 2 did it in 2007 these space probes discovered that the heliosphere is not a perfect ball around the Sun its southern boundary is 10 a closer to the star than the northern one so we're moving in interstellar space and will soon approach a stone wall around our solar system 200,000 Aus further and there it is this wall of rock is the or cloud in fact it's a pile of asteroids that surround our world scientists speculate that the or Cloud could be the source of comets and meteorites that fall to Earth but they're so sparse that we easily fly between them now we're in complete dark Darkness the Milky Way is about 106,000 Lightyear wide in a conventional rocket it would take billions of years to fly across that distance but you throttle to the max you masterfully fly past the stars and planets as if on a racetrack and within minutes you're at the edge of our galaxy there's no more Interstellar wind all you see are bright dots somewhere in the distance these dots are huge galaxies we need to look at a map to make a route to the edge of our entire Universe you're here near the Milky Way galaxy it's part of a cluster of galaxies called the lania super cluster but even this huge thing is like a little Street in a big city zooming out we find hydris and Taurus super cluster thousands of galaxies on the map look like little dots maximum zoom out this is our entire observable universe we thought it was infinite but we may have proof that it has a boundary it's here 10 billion light years away from our home even if you travel at the speed of light a trip there would take twice as long as our whole planet has existed during that time the Sun will either fade away or explode like a supernova destroying our entire solar system and if you can live that long and then return home you will see that our galaxy is there no more it's long since collided with the Andromeda galaxy and merged into one big Cosmic body luckily your ship is able to to warp SpaceTime so that this journey will literally take a few seconds boom congratulations you've arrived at your destination the aridus supervoid some scientists believe this location is the evidence of collisions of our universe with something big enough to leave such a large Scar the idonis supervoid is an empty and cold Space 1 billion Lighty years wide if you think of this void as a cup it would fit at least 10,000 galaxies and it appeared after an accident of gigantic proportions the object that crashed into our universe was another Universe yes other universes may actually exist imagine that our entire universe is a huge bubble that contains all the clusters of galaxies in the observable universe there could be an infinite number of such bubbles they could have been born during the big bang these universes may be different from ours they may have other galaxies and nebula but these bubbles could also be parallel universes this means that if you chose cereal over oatmeal in the morning in Another Universe your twin would choose the oatmeal every choice you ever made in life had completely different consequences in a parallel universe and because the number of choices are infinite there's a whole Infinity of parallel universes so like a regular bubble our universe has a wall that is near the aridus supervoid long ago another bubble flew past ours as they approached each other their gravitational fields began to interact our boundary wall began to deform and pull toward the other Universe the same thing happened on the other side then the walls of our universes came into contact but as these bubbles moved their connection began to break and the other Universe just ripped a huge chunk of ours a cold void was formed at the point of collision and that was the aridus Super void the problem is that the Universe looks the same to The Observer regardless of point of view for example imagine a basketball hanging in the air now if we put an ant on the ball and tell it to find the edge of the ball it will start running around it making an infinite number of circles but the landscape around the ant will not change all it will see is a rounded Horizon that's because the ball Remains the Same from any point of view the same thing happens to us when we try to find the edge of our universe all because we imagine the world in three-dimensional space and our view is limited for example you see an ordinary Square in two-dimensional space but if you add depth and change the point of view voila it's a cube if we could see the universe in four-dimensional space a square might be something completely different but maybe we can leave our home bubble the key to traveling to another Universe might be inside a black hole a black hole is one of the most mysterious objects in the universe they're so heavy they warp not only space but time as well it's like putting a heavy Boulder on a net the net will sag and the closer you get to the boulder the stronger the curvature is once you're in the gravitational field of a black hole you can't leave it we still don't know what might actually be in the heart of a black hole some scientists speculate that white holes also exist theoretically they should be born along with black holes except for the color they're the exact opposite of black holes nothing can come close to a white hole at the moment there's no data on on such objects but general relativity Theory suggests they do exist there's also a theory that a black hole may be a passage to another Universe when you get into a black hole you can come out the other side through the Event Horizon of the white hole so you bypass the boundary of the universes and find yourself in a completely different world but we may have proof that a white hole exists in 2006 scientists discovered an unusual burst of energy somewhere 1.6 billion Lighty years away from Earth this burst was unique it didn't look like a supernova explosion or even the merger of two black holes some astronomers believe it was the birth of a white hole but because it was unstable it was destroyed almost immediately this process was reminiscent of the birth of our entire universe the Big Bang so scientists called it the little Bang [Music] [Music] a [Music] [Music] [Music] [Music] [Music] oh [Music] [Music] [Music] [Applause] [Music] a [Music] [Music] [Music] oh [Music] [Music] oh [Music]
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