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Earth may not have needed water-rich asteroids to fill its oceans. Oxford researchers found enough native hydrogen inside a meteorite resembling Earth’s original building blocks to explain the planet’

Hydrogen bonded to sulphur in the EH3 meteorite LAR 12252 supports a native source for Earth’s water, though later asteroid contributions and volatile losses remain unresolved. Every drop in Earth’s oceans contains material with a history older than the planet. The oxygen was forged in earlier stars. Much of the hydrogen reaches back to the early universe. The harder question is how those elements came together here in such... [11372 chars]

Earth may not have needed water-rich asteroids to fill its oceans. Oxford researchers found enough native hydrogen inside a meteorite resembling Earth’s original building blocks to explain the planet’

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