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Inverse
Inverse
Science
Charles Q. Choi

Astronomers find a shocking culprit that shaped Earth's continents

Earth Solar System Chris Kirkland

Earth is the only planet known to possess continents. In a new study published August 23 in the journal Geology, researchers suggest unexpected seeds for the formation of the first continents on our world — comets launched at our Solar System as it passed through the spiral arms of the Milky Way.

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