I don't know," he says. "This survey work is really exciting because it's a proper blank in the map." Antarctica's vast ice covers huge mountains ranges - some the size of the European Alps - and ...

It was one of the most famous expeditions in history. No single country owns Antarctica. Instead many countries work together to protect Antarctica. Image caption, A research base in Antarctica.

The map-makers at the British Antarctic Survey (BAS) were prompted to take another look at the mountains because of concerns for the safety of pilots flying across the White Continent.

Interview with Alexander Huber who together with his brother Thomas, Stephan Siegrist and Max Riechl carried out three first ascents on Holtanna and Ulvetanna, two relatively unknown, remote and ...