Scientists Spot What May Be a Giant Impact Crater Hidden Under Greenland Ice

  1. Scientists Spot What May Be a Giant Impact Crater Hidden Under Greenland Ice   Space.com
  2. Ice Age Asteroid Crater Discovered Beneath Greenland Glacier   New York Times
  3. Greenland ice sheet hides huge ‘impact crater’   BBC News
  4. A Massive Impact Crater Has Been Detected Beneath Greenland’s Ice Sheet   Gizmodo
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