A new map of the mountains, valleys and canyons hidden under Antarctica’s ice has revealed the deepest land on Earth, and will help forecast future ice loss. The frozen southern continent can look pretty flat and featureless from above. But beneath the ice pack that’s accumulated over the eons, there’s an ancient continent, as textured as any other. … Leggi tutto BedMachine Antarctica : The new map reveals previously unknown topographical features that shape ice flow on the frozen continent