A well-preserved crater has been identified deep beneath the bed of the North Sea. It may well have been produced by the impact of an extraterrestrial body some 60 million years ago.
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Spray, J. Impacts in the round. Nature 418, 487–488 (2002). https://doi.org/10.1038/418487a
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DOI: https://doi.org/10.1038/418487a
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