8 years ago
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Rosetta finds oxygen on comet 67P in 'most surprising discovery to date'
Scientists on the Rosetta mission have found oxygen in the gas cloud around comet 67P in what they described as the most surprising discovery about the comet to date. It is the first time that molecular oxygen - the form of the gas we breathe - has been detected on a comet, and points to a gentle birth for comet 67P some time before the formation of the solar system.
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http://www.theguardian.com
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I had no idea. Perhaps it's way more common than we thought.
We've found water to be more common than we originally thought, so why not? Maybe earth-like worlds are actually abundant and we just haven't found them