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.
Thursday, May 6, 2010
Comet
A comet is a generally small celestial body made up of ice, rock, and dust. A comet tail is seen when a comet passes close to the Sun.
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