The Hubble Space Telescope spotted carbon dioxide in the atmosphere of a planet orbiting another star, NASA announced. This breakthrough is an important step toward finding chemical biotracers of extraterrestrial life, although in this case NASA is sure there's no life on the distant planet. 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…
Hubble Space Telescope Finds Carbon Dioxide, A Potential Sign Of Life, On Another Planet
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