My trivia and facts on the Universe. Asteroids, black holes, distances, galaxies, light, Mars rovers, Moon landings, stars, Titan, Voyager program, and other Universe trivia and facts.
Monday, February 1, 2010
Galaxies - facts 1
A galaxy is made up of a massive amount of gas, dust, stars, planets, and other objects. They are held together by their own gravity.
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