Professional diver Andrew Ryzebol tells PEOPLE exclusively of his risky underwater explorations 200 feet beneath uncharted ...

Remarkable time-lapse footage reveals massive glaciers and ice sheets splitting apart, collapsing, and disappearing at a rate that has scientists alarmed. This NOVA-National Geographic Television ...

Under Thin Ice follows Canadian extreme divers and cinematographers ... With most of the ice gone for the summer, it’s the perfect place to swim with the supreme predator of the Arctic.