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Galaxies, part 1: Crash Course Astronomy #38

Season 1 Episode 38

About the Episode

Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular. Galaxies can collide, and grow in size by eating each other.

Aired: 10/28/15 | Expires: | Runtime: 11m 51s
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