The Latest Breaking News from the British Antarctic Survey

"It's a trillion tons of ice," as one expert told NPR. Now the largest iceberg in the world, A23a, is on the move after decades of being grounded on the seafloor.

The world's largest iceberg, known as A23a, has broken loose and is moving past the northern tip of the Antarctic Peninsula in new satellite images from the Copernicus Sentinel-1 mission.

The British Antarctic Survey says that one of the world’s largest icebergs is drifting beyond Antarctic waters after being grounded for more than three decades

A23a split from the Antarctic’s Filchner Ice Shelf in 1986, but it became stuck to the ocean floor and had remained for many years in the Weddell Sea

The British Antarctic Survey says that one of the world’s largest icebergs is drifting beyond Antarctic waters after being grounded for more than three decades

Vishnu Nandan braved extreme weather and polar darkness in the Antarctic as part of a 25-member team of the British Antarctic Survey. He installed a U.S.-made instrument to measure the thickness of sea ice, which is prone to error when measured using satellite radars. This year recorded the worst sea…

Experts warn that if the virus reaches certain rare bird populations, "they are in threat of extinction"

The icebreaker RSV Nuyina’s journey began in Tazmania last week after weeks of preparation

Out of five known emperor penguin colonies in the Bellingshausen Sea region of western Antarctica, four have failed to breed this year as chicks likely drowned in the melting sea ice.

Breeding failures in the Bellingshausen Sea ‘without precedent’ as multiple colonies across large region all fail in a single season

Seabirds are one of the world’s most threatened animal groups. They already contend with multiple issues, including climate change, accidental capture in fishing gear and being eaten by invasive species like cats and some rodents.