Earth’s water has been present since the planet’s earliest days

October 31, 2014 5:02 AM

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Earth’s water has been present since the planet’s earliest days

Meteorite study holds key to origin of our oceans.

Studies of meteorite samples known to have come from the protoplanet Vesta indicate Earth’s surface had water much earlier than scientists previously believed. Oceans, which now cover 70 percent of the planet, were here as early as 14 million years after the solar system formed.

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