What is a Galaxy.

Asked on near Van Buren, ME
Topics: ScienceAstronomy


Daniella Daniel

A galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust, and dark matter, an important but poorly understood component. The word galaxy is derived from the Greek galaxias, literally "milky", a reference to the Milky Way. Examples of galaxies range from dwarfs with as few as ten million stars to giants with one hundred trillion stars, each orbiting their galaxy's own center of mass.

Ella Barber

A galaxy is a collection of star systems; any of the billions of systems each having many stars and nebulae and dust...

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What is a Galaxy.

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