Searchers flew over stretches of ice-covered seas and scoured miles of frozen tundra Friday for any sign of a plane that went ...

The Bering Air Caravan was heading from the village of Unalakleet to Nome — a distance of about 150 miles — when it ...

The lunar canyons Vallis Schrödinger and Vallis Planck are extraordinarily deep, and scientists now know the valleys were ...

The energy to produce the grand canyons on the Moon is about 130 times larger than the energy in the global inventory of ...

Rescuers flew over stretches of ice-covered seas and scoured miles of frozen tundra Friday for any sign of a plane that went ...

The Bering Air Caravan, a single-engine turboprop, was heading from Unalakleet to Nome on Thursday afternoon with nine ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

The Bering Air Caravan, a single-engine turboprop, was heading from Unalakleet to Nome on Thursday afternoon with nine ...

The disappearance marks the third major U.S. aviation mishap in eight days. A commercial jetliner and an Army helicopter ...

Authorities say a single-engine plane flying over water in Alaska just south of the Arctic Circle with 10 people on board ...

Contractors blew up the remnants of a bridge that almost collapsed under heavy rains last summer near Mankato.

Researches have determined that ejecta from an ancient asteroid. strike carved out the grand canyons (Vallis Schrödinger and ...