Icebergs produce some of the loudest natural noises in the oceans. Can we learn anything about their birth, life and death by listening in?

When scientists peered beneath one of Antarctica's floating ice shelves, they were surprised to find an upside-down landscape of peaks, valleys and plateaus.

The world's largest icebergs break off the Antarctic ice sheet. As they drift and melt in the Southern Ocean, they create a unique environment around them.

In the coldest place on Earth, workers wage an epic battle with the extreme landscape – aided by specially trained penguin-movers.

Isolated for six months one winter, a group of scientists changed how they spoke.

It comes from outer space. Mary Westover talks to the scientists searching for hidden micrometeorites in Antarctica and on cathedral roofs.

Scientists once thought the East Antarctic ice sheet, which contains enough water to raise sea levels 52m (170ft), was stable. But now its ice shelves are beginning to melt.

Flying on the coldest continent on Earth is a dangerous business, but without aircraft we would still know relatively little about Antarctica and life there would be impossible.