Massive 'Grand Canyon' Found Hidden Beneath Greenland's Ice - Universe Today
There’s a “Chuck Norris fact” that says Chuck once went skydiving but promised never to do it again, saying one Grand Canyon is enough. But Chuck must have taken another jump millions of years ago. Data gathered by NASA’s Operation IceBridge, an aerial science observation mission, has uncovered a previously unknown massive canyon in Greenland, … Continue reading "Massive ‘Grand Canyon’ Found Hidden Beneath Greenland’s Ice"