Supernova shrapnel found in meteorite
Scientists have identified the microscopic shrapnel of a nearby star that exploded just before or during the birth of the solar system 4.5 billion years ago. Faint traces of the supernova, found in a meteorite, account for the mysterious variations in the chemical fingerprint of chromium found from one planet and meteorite to another.
Full story at Futurity.
Photo credit: NASA/ESA/Johns Hopkins University
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