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Social Sciences 21 Online
OpenStudy (anonymous):

What is a galaxy? How many galaxies are there and how many stars does each galaxy hold?

OpenStudy (anonymous):

A galaxy is a large collection of stars and dust. There are an estimated 125 billion galaxies in the universe, with each galaxy holding anywhere between 100 to 400 billions stars each.

OpenStudy (gatorgirl):

^Correct

OpenStudy (anonymous):

Thanks Again @elliecosme u have been a big help :)

OpenStudy (anonymous):

You're welcome c:

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