what is universe? everyone help me my answer.
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All existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.
Explanation:
The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.
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