Scientists spot first organic molecule on distant planet

An organic molecule has been spotted for the first time in the atmosphere of a planet outside our solar system, a key step toward possibly finding signs of life on a distant world, scientists said.

Astronomers using the Hubble Space Telescope found methane in the atmosphere of a planet called HD 189733b, which is about the size of Jupiter and is 63 light-years from Earth, they said in research published on Wednesday in the journal Nature.

But the scientists were quick to point out that this distant planet -- with atmospheric temperatures around 1,800 degrees Fahrenheit (1,000 degrees Celsius) -- is not thought to be a candidate for hosting any form of life.

"For this specific planet we observed, methane cannot be produced biologically," Giovanna Tinetti of the University College London, one of the researchers, said by e-mail.

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