Centuries of flawed maps have led to a misconception about Greenland's size, which is nowhere near as big as it looks on the familiar flat world map. It's certainly not a small island: It's about ...

The new subglacial geology map provides an invaluable ... subglacial valleys crossing Greenland's interior. These features, which remain poorly resolved in current topographic models, may hold ...

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.