Hiawatha CraterOther Ancient Impacts

Second suspected Greenland crater announced by NASA

Only at the Cosmic Tusk can you expect to see a major global announcement by NASA scooped by six weeks. Thanks to our blog’s most dedicated contributor, Steve Garcia: You heard it here first. See other, non-prescient, contemporaneous coverage here: NBC:  Immense crater may have been found deep under Greenland’s ice sheet PhysOrg: NASA finds possible second impact crater under…
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Key paper reveals the astonishing cosmic secret behind "Boneyard Alaska"

Ancient airburst over Ohio