Science
Earth’s water came from space, but not in the way we thought – ABC News
According to textbooks, Earth was dry before it was bombarded by water-containing rocks from the icy outer solar system. But that’s not what a new study has found.
Earth has vast oceans today, but our planet was a dry rock when it first formed and water was a late addition, rained down in asteroids from the icy outer solar system.
That’s what the textbooks say, but new research published today in the journal Science, adds weight to a competing idea that Earth was actually born ‘wet’.
Key points:
- Water is abundant in space but it was thought that Earth was dry when it formed
- A new study shows that meteorite rocks of the type that built th…
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