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Earth May Have Had a Ring Like Saturn Once
I f astronomers had been walking the Earth 466 million years ago, they may have had something special to see. The moon and ...
Smithsonian Magazine
17h
Did Earth Once Have a Ring Like Saturn? Geologists Find Evidence for a Halo of Orbiting Space Rocks 466 Million Years Ago
A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...
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