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A long lost planet once orbited next to Earth, Apollo-era moon rocks suggest - Live Science
12/1/25 at 1:04pm
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Live Science
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Sharmila Kuthunur
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Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals.
Astronomy
Science
Space Technology
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https://www.livescience.com/space/planets/an-extra-solar-system-planet-once-orbited-next-to-earth-and-it-may-be-the-reason-we-have-a-moon
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