On Jupiter’s moon Io—the solar system’s most volcanically active world—you’ll find the mountain Ionian Mons. Its height is estimated at nearly 8 miles. All in all, scientists have discovered more than ...

When you think about the world’s highest mountains, Mount Everest probably comes to mind first. The planet’s roof is actually ...

Kilimanjaro is a tantalising prospect: an enormous, continent-topping high that even ordinary hikers can reach once steeled ...

Crews on Mount Mansfield say the rescue is a warning to hikers as temperatures plunge and early winter conditions take hold.

Julia Lyubova, 44, climbed all 29,032 feet of Mount Everest this past spring. The expert climber caught an altitude sickness ...

This mountain may not be as high or as famous as Everest, but it's a riskier endeavor requiring a higher level of skill and ...

A dad of two has died after falling from a trail while climbing one of the tallest mountains in the United States.

WATCH the moment a massive avalanche breaks free from the steep face of Annapurna I, one of the world’s highest and most ...

One of the world's top endurance athletes just blazed through California on his bicycle, stopping only to hike up each of the state's 14,000-foot peaks, and setting an incredible High Sierra speed ...

Temperatures across North Georgia will plunge early next week and could even bring a taste of snow to the state’s tallest mountains.