Antarctica is a place like no other on Earth – its vast, icy landscape is starkly beautiful and steeped in mystery. It is the coldest, driest, and windiest continent in the world. This frozen wilderness supports some of the most extreme forms of life on Earth and has captivated scientists for centuries. But what just happened has shocked everyone. There's been a new discovery, a huge, miles long structure that's been moving under the surface of Antarctica. Join us as we talk about what's the mysterious structure and what or who is making it move.