Water found on Deep Impact comet

Images and date from NASA's Deep Impact mission show the Tempel 1 comet contained deposits of water ice. These findings will likely add to the debate over theories that comets may have seeded Earth with water and organic compounds necessary for life.

Last July the NASA mission slammed an 820-pound (370-kilogram) projectile into Tempel-1, producing a crater and cloud of dust to analyze. At the same time, the Deep Impact spacecraft took close-up photos of the dust-covered surface of Tempel 1, a Manhattan-size comet that orbits between the orbits of Mars and Jupiter.

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