Sahara meteorite reveals a vanished protoplanet in the early solar system
TL;DR Summary
A rare Sahara meteorite, NWA 12774, is identified as an angrite whose unusual chemistry and formation under extreme pressures imply its parent body was a Moon-sized protoplanet, offering the first definitive evidence of a long-lost world that formed early in the solar system.
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- Rare meteorite hints at giant early planet EarthSky
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