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Asteroid crashes delivered water on Earth

Last Updated: Wednesday, July 18, 2012, 09:31

Asteroids from the inner solar system may be the source of the majority of Earth`s water, a new study has claimed, contradicting the belief that most of our planet`s water originated in the outer solar system.

Water on Earth originated from comets?

Last Updated: Thursday, October 06, 2011, 18:40

Astronomers have for the first time found water on a comet containing the chemical signature that is similar to Earth`s oceans.