Textbook ExpertVerified Tutor
4 Dec 2021
Given information
All galaxies appear to be moving away from us.
Step-by-step explanation
Step 1.
The universe, according to the Big Bang theory, is constantly expanding. This means that all of the universe's observable regions are retreating from each other.When we observe galaxies from other celestial bodies, we notice that they all appear to be moving because the universe is expanding, and they are receding from all other regions in the universe.
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