Erie's Paul Siple was a polar explorer and geographer who accompanied Richard Byrd to the Antarctic. Wind chill was first ...

In subzero winds, hypothermia announces itself in small, easy-to-miss ways. Here’s what one Nat Geo Explorer does to combat it in some of the coldest places on Earth.

In subzero winds, hypothermia announces itself in small, easy-to-miss ways. Here’s what one Nat Geo Explorer does to combat it in some of the coldest places on Earth.

Deep within caves, high up in the mountains and trekking at the two polar extremes of the earth – Will Smith adventured to some epic locations ...

Decades before nuclear submarines conquered the Arctic, one man tried to do it the hard way. Sir Hubert Wilkins believed the polar ice could be explored from below, using a battered World War I–era ...