The Big Bang, Cosmology part 1: Crash Course Astronomy #42
0
0
2,009 Vues·
10/24/23
Dans
Life
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly it s expanding also allows us to run the clock...
Montre plus
0 commentaires
sort Trier par