A hidden impact crater in northwestern Greenland dates back some 58 million years, making it far older than previous estimates. The challenge now will be to find further evidence of what was surely a massively disruptive global-scale event.
A hidden impact crater in northwestern Greenland dates back some 58 million years, making it far older than previous estimates. The challenge now will be to find further evidence of what was surely a massively disruptive global-scale event.
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