Thursday, April 29, 2010

Asteroids gave Earth water: study

PARIS (AFP) – Astronomers have for the first time detected ice and organic compounds on an asteroid, a pair of landmark studies released on Wednesday says. The discovery bolsters the theory that comets and asteroids crashing into Earth nearly four billion years ago seeded the planet with water and carbon-based molecules, both essential ingredients for life. Working separately, two teams of scientists using NASA's Infrared Telescope Facility in Hawaii found that the 24 Themis, which orbits the Sun between Mars and Jupiter, is literally covered in a thin coating of frost. More>>

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