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How a planetary crash with Theia brought water and life to Earth

About 4.6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity. The Sun, planets, and eventually Earth formed out of the cloud. But when did ...
Popular Science

How did water end up on Earth? New evidence upends long-held theory.

🛍️ Amazon Prime Day is live. See the best deals HERE. 🛍️ By Andrew Paul Published Apr 15, 2025 11:01 PM EDT Get the Popular Science daily newsletter💡 ...