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Cosmic Explosion Left Imprint in Fossil Record - Universe Today
Ancient iron-loving bacteria may have scooped up evidence of a nearby supernova explosion 2.2 million years ago, leaving an extraterrestrial iron signature in the fossil record, according to German researchers presenting their findings at a recent meeting of the American Physical Society. In 2004, German scientists reported finding an isotope of iron in a core … Continue reading "Cosmic Explosion Left Imprint in Fossil Record"