Space
Rosetta Finds Strange Water, Fueling Ocean Origin Debates
An analysis of water vapors from comet 67P/Churyumov-Gerasimenko, the quarry of the Rosetta Spacecraft and its history-making Philae lander, has revealed that its water is not at all like Earth's. This revelation casts some serious doubt on one theory of how our oceans formed, and raises many new questions.
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