Astronomers testing techniques to search for extraterrestrial life have detected carbon dioxide in the atmosphere of a planet 63 light-years away.The laws of probability suggest that there is life out there somewhere. Pretty cool.
This carbon dioxide, though, is certainly not coming from plants or automobiles. The planet, HD 189733b, is far too big (about the mass of the Jupiter) and too hot (1,700 degrees Fahrenheit, or 925 degrees Celsius) for any possibility of life.
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