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There’s something big lurking beneath Greenland’s ice. Using airborne ice-penetrating radar, scientists have discovered a 31-kilometer-wide crater — larger than the city of Paris — buried ...

At the time the researchers have pinpointed, Greenland was not covered in an ice sheet, but rather was home to a temperate rainforest. When the asteroid that created the crater impacted Earth ...

Today, the crater lies beneath the Hiawatha Glacier in Northwest Greenland. Rivers flowing from the glacier supplied the researchers with sand and rocks that were superheated by the impact 58 ...

Here’s how it works. Scientists now know the age of an enormous impact crater hidden under Greenland's ice. The Hiawatha crater, which sits under 0.6 mile (1 kilometer) of ice in northwest ...

Today, an international team of scientists describes what they say is a huge new impact crater that lies under northwestern Greenland’s Hiawatha Glacier. If confirmed, it would be the first ...

The powerful impact that created a mysterious crater at the northwestern edge of Greenland’s ice sheet happened about 58 million years ago, researchers report March 9 in Science Advances.

there’s a crater there, and it’s quite large. “Previous radar measurements of Hiawatha Glacier were part of a long-term NASA effort to map Greenland’s changing ice cover,” Joe MacGregor ...

So when scientists discovered a gigantic crater almost nine times the width of Manhattan under Greenland’s ice sheet in 2015, they were left with a question: The newly discovered crater appeared ...

There have been challengers for oldest impact crater in places like Greenland. A study from two years ago suggested there was a 3-billion-year-old impact crater, but the evidence was deemed by ...