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28 May, 23:11

Which phrase best defines a galaxy?

tightly packed group of older stars

large grouping of more than two stars

loose, disorganized star cluster held together by gravity

large collection of stars, gas, and dust held together by gravity

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Answers (2)
  1. 29 May, 01:14
    0
    i think its the second one ... sorry if i got it wrong
  2. 29 May, 01:25
    0
    large collection of stars, gas, and dust held together by gravity

    Explanation:

    Galaxies are clustered in the form of a spiral, stars, meteoroids, planets and several other space bodies similar to the Milky Way, the galaxy that houses the solar system where we are located. In other words, a galaxy is a large collection of stars, gas and dust joined by gravity.

    Any galaxy has billions of stars. Our galaxy, the Milky Way, being a giant galaxy (it is the second largest in the Local Group, just behind the Andromeda Galaxy), contains about 1011 stars.

    Ever since astronomers became aware of their existence, galaxies have fascinated us for their variety of shapes, the interactions between them and the phenomena that occur in them.
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