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.
Friday, February 5, 2010
Light year
A light year is approximately six trillion miles (6,000,000,000,000). This is how far light travels in a year. To see how far light travels each second, see light speed.
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