Climbers Alex Honnold and Tommy Caldwell set out on a daring expedition to tackle Alaska’s formidable Devils Thumb. Battling harsh conditions and daunting peaks, they push their physical and mental…

In 2001, satellite imagery captured a mysterious “thermal anomaly” on an unexplored volcano at the ends of the Earth. What lies inside could provide new clues to help predict volcanic…

Sir John Franklin set off from England in 1845 with two ships and 129 men to be the first to navigate the Northwest Passage, a new trade route over the…

Follows elite climber Alex Honnold and a world-class climbing team led by National Geographic Explorer and climber Mark Synnott on a grueling mission deep in the Amazon jungle as they…

Seventy-five years after Brad Washburn, one of the greatest aerial mountain photographers of all time, first shot Alaska’s Denali Mountain from the open door of an airplane, climbing buddies Renan…