The Science, Health, and Technology Room
"Researchers, using state-of-the-art radar techniques, located a 19-mile wide asteroid crater which struck around 12,000 years ago. The crater, which is thought to be the result of an iron asteroid about one kilometre in size, was found beneath the Hiawatha Glacier in remote northwest Greenland. Scientists are unsure of the exact date in which the asteroid hit but it is likely to be around 12,000 years ago in the late Pleistocene period when the last ice age was taking place."
The crater is 31 kilometers across.
https://www.express.co.uk/news/scien...-age-greenland
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