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‘Lid’ of asteroid dust smothered and burned the dinosaurs, say scientists

Heat and fire may have caused the mass extinction of Cretaceous creatures The post ‘Lid’ of asteroid dust smothered and burned the dinosaurs, say scientists appeared first on Physics World .

  • Asteroid impact caused mass extinction 66 million years ago
  • Brandon and Alexandria Johnson revived dust layer theory
  • Dust blocked radiation, causing extreme heat and wildfires

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