Deep beneath the great Antarctic ice sheet scientists have made an astonishing discovery. They’ve found one of the largest lakes in the world – at 10,000 square km it’s about the extent of Lake Ontario, but about twice as deep (500m in places). The theory was that it could only exist because the ice acts like a giant insulating blanket, trapping enough of the earth’s heat to melt the very bottom of the ice sheet. Scientists are desperate to get into the lake because its extreme environment may be home to unique flora and fauna, never seen before. But 4 kilometers of ice stand between the lake and the surface, and breaking this seal without contaminating the most pristine body of water on the planet is a difficult challenge. Really great documentary!

See PopSci Article: With 30 Meters Left to Drill, Scientists Leave Subterranean Lake Vostok For The Winter, Amid Controversy. www.popsci.com
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