Issue Date: May 3, 2010
Frosty Asteroid Leaks Water Into Space
At least one asteroid in the belt between Mars and Jupiter is unexpectedly covered in water ice and organic compounds, a pair of studies report (Nature 2010, 464, 1320 and 1322). Because the water on Earth was likely delivered by asteroids or comets, the finding raises the possibility of being able to study asteroid composition to pinpoint biogenic building blocks. In separate but complementary data collected at NASA’s Infrared Telescope Facility on Mauna Kea, Hawaii, . . .
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