The vessel was discovered off the coast of Greenland.

Features range from knifelike snouts to serrated spines.

The newfound virus looks like a mashup of two dangerous viruses, researchers said.

A quest to save this personable boa constrictor led to the discovery of a new virus.

Earthquakes could rattle parts of the Northwest more frequently than once thought.

Forecasters up the chance of a busier-than-normal season.

This iceberg is only beginning its journey.

Images suggest Greenland is losing ice in fits and starts.

Filmmakers are scouting locations to showcase iconic American spaces.

The sun hasn't shown its face in two months.

Massive geological feature has implications for ice loss.

Map reveals increase in fires as well.

An intimate look at an irresistible young leopard who is loath to leave his mother.

A fault in America's backyard could generate a quake to rival Japan's disastrous 2011 earthquake and tsunami.

The process may bring precious metals within reach.

This whopper of a storm was a rare event.

Smoke is traveling far from the flames.

Alvin is getting a makeover to extend its reach.

The silhouettes of Earth's tectonic boundaries stand out in bright color.

The flight crews have been keeping busy despite the storm's lack of movement.

Researchers haven't revised the outlook for the Atlantic hurricane season.

It's the first time in more than 150 years that so many storms have blown up so early.

It's not unusual for hurricanes and tropical storms to spawn tornadoes.

The dive is the deepest ever for three humans simultaneously.