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Browsing Tag

Great Oxidation Event

2 posts
SScience
Lim et al. demonstrate that stromatolites -- the oldest fossil evidence of oxygen-producing microbial life on early Earth -- could have developed within impact craters, based on a detailed investigation of stromatolites and lake sediments in the Hapcheon impact crater, South Korea. Image credit: Lim et al., doi: 10.1038/s43247-026-03206-7.
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Ancient Crater Lakes May Have Provided Ideal Conditions for Earth’s Earliest Oxygen-Breathing Life

  • May 21, 2026
Researchers have discovered stromatolites — layered structures formed by microbial communities — inside a 42,000-year-old asteroid crater in…
SScience
Some early life forms may have breathed oxygen well before it filled the atmosphere | MIT News
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Some early life forms may have breathed oxygen well before it filled the atmosphere | MIT News

  • February 6, 2026
Oxygen is a vital and constant presence on Earth today. But that hasn’t always been the case. It…
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