Well, the Sun, just like the stars we see at night,
is a star.
It's a giant ball of super hot hydrogen.
Gravity squeezes it in and it creates energy,
which is what makes the Sun shine.
Eventually, it will use up all of that hydrogen.
But in the process, it's creating helium.
So it will then use the helium.
And it will continue to use
larger and larger elements
until it can't do this anymore.
And when that happens,
it will start to expand
into a red giant
about the size of the inner planets.
Then it will shrink back down
into a very strange star called a white dwarf —
super hot,
but not very bright
and about the size of the Earth.
But our Sun has a pretty long lifetime.
It's halfway
through its 10-billion-year lifetime.
So the Sun will never really burn out,
but it will change and be a very, very different
dim kind of star
when it reaches the end of its normal life.
We Asked a NASA Scientist.
NASA. A NASA 360 Production.
Klik teks atau cap waktu mana pun untuk melompat ke momen tersebut dalam video
Bagikan:
Sebagian besar transkrip siap dalam waktu kurang dari 5 detik
Salin Satu Klik125+ BahasaCari KontenLoncat ke Cap Waktu
Tempel URL YouTube
Masukkan link video YouTube apa saja untuk mendapatkan transkrip lengkap
Formulir Ekstraksi Transkrip
Sebagian besar transkrip siap dalam waktu kurang dari 5 detik
Pasang Ekstensi Chrome Kami
Dapatkan transkrip seketika tanpa meninggalkan YouTube. Pasang ekstensi Chrome kami untuk akses satu klik ke transkrip video apa pun langsung di halaman tontonan.
Ekstensi Chrome