Meteor Crater formed some 50,000 years ago. It represents the best preserved meteor impact site in the world, measuring some ...
A 4.5-billion-year-old meteorite crashes through the roof of a house in Georgia, revealing clues about the origin of the Solar System.
Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.
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