Oxygen In Exoplanet Atmospheres Could Fool Search For Life
Moffett Field CA (SPX) May 09, 2014 - Oxygen is a signal of life on our own planet, but that's not necessarily the case elsewhere. Particularly when it comes to young planets, signs of oxygen do not necessarily indicate the presence of biological processes, new research argues. Water vapor in the upper atmosphere of a young planet could break into hydrogen and oxygen by incoming ultraviolet and extreme ultraviolet rays from th ... more
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