Antarctica

"There was this gigantic river system": Researchers find ancient lost world deep beneath Antarctic ice.

Iron-rich waters buried beneath Taylor Glacier in East Antarctica are sporadically released in what looks like a bloody mess — but the so-called Blood Falls aren't as gruesome as they first appear and sound.

The Maud Rise polynya has been sporadically opening up in Antarctica's ice since at least the 1970s. Now climatologists finally know why.

Antarctic sea ice has been disappearing over the last several summers. Now, climate scientists are wondering whether it will ever come back.

The fledglings are typically reared on floating platforms of sea ice, but an unprecedented decline in the ice extent has driven young onto cliffs.

In 1898, the crew of the first scientific expedition to Antarctica became trapped inside sea ice around the southernmost continent. Much of that once thick ice is dwindling, says polar researcher Edward Doddridge.

Sea ice extent in Antarctica is vital for keeping ice on the continent and sea levels low. But its dwindling extent could mean the continent has shifted to a new regime, with global ramifications.

A research expedition in the Southern Ocean has mapped a string of seamounts that help to shape the Antarctic Circumpolar Current — an ocean current that flows clockwise around Antarctica.

The gigantic iceberg A23a, which broke off from Antarctica in 1986, is finally moving away from the icy continent after being stuck on the seafloor for decades.

British Antarctic Survey researchers have found that the rate at which ice is melting and contributing to sea level rise will accelerate in the next century, regardless of actions to limit greenhouse gas emissions.