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What Does Earth’s Prehistory Reveal?

About 66 million years ago, a thin layer of clay containing unusually high concentrations of iridium formed at sites separated by oceans and continents. Researchers eventually connected that layer to the buried Chicxulub crater on Mexico’s Yucatán Peninsula and to the disappearance of non-avian dinosaurs.
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New Space Economy broke the news on Friday, August 14, 2026.
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