New research suggests Earth's Moon formed from the catastrophic collision of our planet with its "sister" planet, Theia, born nearby. This "sibling" planet theory, supported by iron isotope evidence, ...
ZME Science on MSN
The Lost Planet That Gave Birth to the Moon May Have Been Earth’s Next-Door Neighbor
About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world ...
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