http://www.newsweek.com/antarctica-hidden-glaciers-ice-sheets-unexplored-south-pole-earth-sites-944253

When you picture Antarctica, you probably imagine vast white ice stretching evenly into the distance. But below all that ice, the terrain is surprisingly rugged, and that could have serious consequences for how the continent's glaciers melt.

That's according to a recent paper published in the journal Geophysical Research Letters. In the paper, a team of scientists reports that they have discovered three massive canyons in the land beneath Antarctica's ice.