Answer:
The universe is everything. It includes all of space and all the matter and energy that space contains. It even includes time itself and, of course, it includes you. Earth and the Moon are part of the universe, as are the other planets and their many dozens of moons.
Explanation:
So, we can understand where we came from, where we are going, and how physics works under conditions that are impossible to recreate on Earth. In astronomy, the Universe is our laboratory!
Author:
luzbrowning
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