Lakes Under Antarctica

How did the water get there, and where does it go?

Subglacial Lakes from NASA Model — Public Domain NASA

Our ultimate reservoir of freshwater resides at the South Pole. Ninety percent of the world’s ice is in Antarctica. Now satellites have detected lakes and flowing water thousands of feet below the surface of the ice. Lakes there are constantly filling and subsequently draining. But how do we see them, why did they form, and where does their…