A bowl-shaped depression in the bedrock discovered more than a mile beneath the ice in northwestern Greenland is believed to have been caused by a meteorite that struck Earth long ago. If confirmed, this would be only the second impact crater discovered under one of Earth’s ice sheets.

Arctic Ocean

Greenland Sea

Location of the Hiawatha impact crater

Location of possible impact crater

Baffin Bay

North Atlantic Ocean

GREENLAND

CANADA

UNITED STATES

Arctic Ocean

Greenland Sea

Location of the Hiawatha impact crater

Location of possible impact crater

North

Atlantic

Ocean

Baffin Bay

GREENLAND

CANADA

UNITED STATES

Arctic Ocean

Greenland Sea

Location of the Hiawatha impact crater

Location of possible impact crater

GREENLAND

Baffin Bay

North

Atlantic

Ocean

GREENLAND

CANADA

UNITED STATES

Arctic Ocean

Greenland

Sea

Baffin Bay

GREENLAND

North

Atlantic

Ocean

GREENLAND

CANADA

UNITED STATES

Another possible impact crater discovered in Greenland