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The Big Bang, Cosmology part 1: Crash Course Astronomy #42

2,009 Lượt xem· 10/24/23
CrashCourse
CrashCourse
2,185 Người đăng ký
2,185
Trong 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...

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