A team lead by a NASA scientist has discovered a second possible impact crater
buried beneath the ice in Northwest Greenland.
This follows the discovery of the first ever crater found under an ice sheet,
the 18-mile wide Hiawatha impact crater, located just 114 miles away.
The crater was discovered using NASA satellite images of the ice sheet surface, and radar data from airborne missions like Operation IceBridge.
The new 22-mile wide structure, if confirmed, would be the 22nd largest crater on Earth.
Using data from the lunar and terrestrial impact records, the team determined statistically that it’s possible the two craters
formed at very different times in Earth’s history, even though they’re relatively close to each other.