New study disputes where water came from

Conventional scientific wisdom is that Planet Earth formed too near the sun to have water, which comets and meteorites later brought from space. But that may be wrong. It took a while to figure out, though, because meteorite fragments containing the evidence are rare.

These are from meteorites that formed in the hot inner solar system region where Earth formed. Now, cosmo-chemists have found they contain more hydrogen than previously thought. That suggests Earth’s materials contained “more than enough” hydrogen “to create all of the world’s water … [and] Earth might have been wet from the beginning.”

Read story here. Photo: Was early Earth like this, or this?

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