It’s been over 50 years since I hiked Sunset Crater. I mentioned this to the young lady at the reception desk in the visitor ...
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Wilkes Land crater: The giant hole in East Antarctica's gravitational field likely caused by a meteorite
The Wilkes Land crater is a hole in the bedrock beneath East Antarctica's ice sheet measuring 315 miles (510 kilometers) across. Researchers have been trying to explain its existence since the 1960s, ...
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