Ancient asteroid craters may have sparked Earth’s oxygen-producing life

ScienceDaily
May 22, 2026, 2:47 am117 ptsTrending
A hidden crater in South Korea may hold clues to one of the biggest turning points in Earth’s history: the rise of oxygen. Scientists discovered fossil-like stromatolites — layered structures built by ancient microbes — inside the Hapcheon impact crater, suggesting that asteroid strikes may have created…

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