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Scientists stunned after discovering 'secret city' in radar image of Greenland ice sheet: 'We didn't know what it was at first'
"Individual structures ... are visible in a way that they've never been seen before." Scientists stunned after discovering ...
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NASA unexpectedly discovered a city under the Greenland ice sheet
In April 2024, NASA scientist Chad Greene and a team of engineers flew over the Greenland Ice Sheet, using radar to study the ...