Huge Crater Under Greenland Glacier Surprises Scientists With Its True Age - ScienceAlert

An enormous impact crater, hiding deep beneath Greenland's Hiawatha glacier, is probably the result of a kilometer-wide asteroid that crashed into Earth 58 million years ago.

An enormous impact crater, hiding deep beneath Greenland's Hiawatha glacier, is probably the result of a kilometer-wide asteroid that crashed into Earth 58 million years ago. That's much older than … [+3354 chars]

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