What looks to be a large impact crater has been identified beneath the Greenland ice sheet. The 31km-wide depression came to light when scientists examined radar images of the island's bedrock.

In a study published Wednesday in the journal Science Advances, the team reports that there is indeed a crater, which was made by a half-mile-wide iron asteroid slamming into Greenland between ...

The rarely seen Greenland shark is a sluggish creature ... just completed its 3 ½-month ascent up the steep rim of Jezero Crater on Mars, spotting an unusual zebra-striped rock along the way.

Rain is becoming more frequent in Greenland and accelerating the melting of its ice, a new study has found. Scientists say they're "surprised" to discover rain falling even during the long Arctic ...

Location of Find Siberian coast, Sakha Republic Most people don't know that Greenland has a massive hole under it. Discovered in 2015 using advanced radar technology, the Hiawatha Crater ...

Map of the bedrock topography beneath the ice sheet and the ice-free land surrounding the Hiawatha impact crater. The structure is 31 km wide, with a prominent rim surrounding the structure.