3.5-Billion-Year-Old Organic Chert Reveals One of Earth’s “Earliest Known Occurrences of Biologically Generated Organic Matter”

1 · Thedebrief · Aug. 18, 2026, 12:48 p.m.
Biology Breaking News Science ancient organic matter ancient life Organic Matter Earth's history Geology
Summary
Scientists have discovered 3.5-billion-year-old organic matter in ancient chert, representing one of the earliest known signs of life on Earth, shedding light on our planet's biological history.
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