The massive 19-mile-wide Hiawatha crater underneath the northwestern ice sheet in Greenland is millions of years older than previously thought, according to new research published Wednesday in the ...

The age of a 31-kilometer (19-mile) wide meteorite crater discovered under a kilometer of Greenland ice had long puzzled scientists. The Hiawatha crater was exceptionally well preserved despite ...

Scientists have discovered a possible second impact crater buried under more than a mile of ice in northwest Greenland. This follows the finding, announced in November 2018, of a 19-mile-wide crater ...

A hidden impact crater in northwestern Greenland dates back some 58 million years, making it far older than previous estimates. The challenge now will be to find further evidence of what was surely a ...

Maps showing the location of the Hiawatha impact crater in northwest Greenland (left) and the shape of Earth’s surface beneath the ice, with the crater clearly visible (right). Credit: University of ...

Several years ago, scientists discovered a crater hiding under Greenland's ice sheet. At the time, they believed it was between three million and 1,200 years old. Now, we know they missed the mark by ...

The asteroid believed to have triggered the end of the dinosaurs’ reign over the globe left a 180-kilometer-wide crater and caused massive climate upheaval. So when scientists discovered a gigantic ...

An international team of researchers, including a NASA glaciologist, has discovered a large meteorite impact crater hiding beneath more than a half-mile of ice in northwest Greenland. The crater — the ...

The age of a 31-kilometer (19-mile) wide meteorite crater discovered under a kilometer of Greenland ice had long puzzled scientists. The Hiawatha crater was exceptionally well preserved despite ...