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OpenStudy (alibaby):
What is a galaxy? How many galaxies are there and how many stars does each galaxy hold?
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OpenStudy (alibaby):
@OpticalMango81 @Ben00
OpenStudy (sprattfield):
A galaxy is an open space of stars, planets, and dust. Each galaxy is millions to billions of years old. There are approximately 500 billion galaxies in the universe. Each galaxy can hold to at least several billion stars.
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