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Ancient meteorites suggest Earth's oceans didn't come from space, but were already here


NBC
NBC News Earth's
Geochemical Research Center
Piani
NASA
Johnson Space Center
Planets Laboratory
the Carnegie Institution for Science
NBC UNIVERSAL


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Laurette Piani
ServiceBut
Anne Peslier
Carlson
more.“Even
discovery.”Tom Metcalfe


Petrographic


Earth
fact.“The Earth

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Houston
Washington

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