Largest Ever Killer Crater Found Under Ice in Antarctica

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Combined image of gravity fluctuations and airborne radar in the Wilkes Land region of East Antarctica. The edges of the crater are colored red and blue a concentration of mantle material is colored orange (center). Image courtesy of Ohio State Unive ...
Combined image of gravity fluctuations and airborne radar in the Wilkes Land region of East Antarctica. The edges of the crater are colored red and blue; a concentration of mantle material is colored orange (center). Image courtesy of Ohio State University.

Planetary scientists have found evidence of a meteor impact much larger and earlier than the one that killed the dinosaurs -- an impact that they believe caused the biggest mass extinction in Earth's history.


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