09-December-2008, 11:09 PM
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Order of Kilopi
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Join Date: Mar 2004
Posts: 13,451
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NASA: Hubble Finds Carbon Dioxide on an Extrasolar Planet
Quote:
NASA's Hubble Space Telescope has discovered carbon dioxide in the atmosphere of a planet orbiting another star. This breakthrough is an important step toward finding chemical biotracers of extraterrestrial life.
The Jupiter-sized planet, called HD 189733b, is too hot for life. But the Hubble observations are a proof-of-concept demonstration that the basic chemistry for life can be measured on planets orbiting other stars. Organic compounds also can be a by-product of life processes and their detection on an Earthlike planet someday may provide the first evidence of life beyond our planet.
Previous observations of HD 189733b by Hubble and the Spitzer Space Telescope found water vapor. Earlier this year, Hubble found methane in the planet's atmosphere.
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Same stuff: Reuters: CO2 found on "hot Jupiter" planet
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