Images: Life at Antarctica's Concordia Station By Andrea Mustain The residents of this remote research station spent the winter cut off from any outside help.
Doomed Polar Explorer's Famed Ship Found on Seafloor By Andrea Mustain The vessel was discovered off the coast of Greenland.
Fishing Expedition Finds Weird Deep-Sea Sharks By Andrea Mustain Features range from knifelike snouts to serrated spines.
New, Deadly Virus Related to Ebola ID'ed in Snakes By Andrea Mustain The newfound virus looks like a mashup of two dangerous viruses, researchers said.
The Story of Larry the Snake By Andrea Mustain A quest to save this personable boa constrictor led to the discovery of a new virus.
Earthquake Record Shakes Up Pacific Northwest Predictions By Andrea Mustain Earthquakes could rattle parts of the Northwest more frequently than once thought.
2012 Hurricane Forecast Update: More Storms Expected By Andrea Mustain Forecasters up the chance of a busier-than-normal season.
Photo Reveals Giant Greenland Iceberg Heading to Sea By Andrea Mustain This iceberg is only beginning its journey.
Old Photos of Glaciers Show Their Fickle Speed By Andrea Mustain Images suggest Greenland is losing ice in fits and starts.
Nat Geo Channel Announces Ambitious National Parks Series By Andrea Mustain Filmmakers are scouting locations to showcase iconic American spaces.
First Sunrise of Season Blazes into Antarctic View By Andrea Mustain The sun hasn't shown its face in two months.
Sweeping 'Grand Canyon' Discovered Beneath Antarctic Ice By Andrea Mustain Massive geological feature has implications for ice loss.
Dazzling Map Reveals Rising Menace of US Fires By Andrea Mustain Map reveals increase in fires as well.
New Nat Geo Film Spots Leopards' Lighter Side By Andrea Mustain An intimate look at an irresistible young leopard who is loath to leave his mother.
Digging Into the Past Reveals Future Quake Potential By Andrea Mustain A fault in America's backyard could generate a quake to rival Japan's disastrous 2011 earthquake and tsunami.
Mystery of Bending Mountains May Be Solved By Andrea Mustain The process may bring precious metals within reach.
Video: Destructive Derecho Windstorm Sweeps Across US By Andrea Mustain This whopper of a storm was a rare event.
Smoke from Western Wildfires Reaches Atlantic Ocean By Andrea Mustain Smoke is traveling far from the flames.
US Deep-Sea Submarine Gets Makeover By Andrea Mustain Alvin is getting a makeover to extend its reach.
Stunning Map Reveals World's Earthquakes Since 1898 By Andrea Mustain The silhouettes of Earth's tectonic boundaries stand out in bright color.
Hurricane Hunters Fly to Tropical Storm Debby's Heart By Andrea Mustain The flight crews have been keeping busy despite the storm's lack of movement.
Despite Debby's Downer, 'Normal' Hurricane Season Expected By Andrea Mustain Researchers haven't revised the outlook for the Atlantic hurricane season.
Tropical Storm Debby Breaks Record with Early Debut By Andrea Mustain It's the first time in more than 150 years that so many storms have blown up so early.
Tropical Storm Debby Spawns Dangerous Tornadoes By Andrea Mustain It's not unusual for hurricanes and tropical storms to spawn tornadoes.
China Breaks Deep-Sea Diving Record By Andrea Mustain The dive is the deepest ever for three humans simultaneously.