A colossal Martian volcano defies everything we know about planetary geology. Hidden clues beneath its frozen summit hint at ...

An explanation of Earth’s tallest mountains and the scientific reasons behind their measurements. Susie Wiles gets in trouble ...

This video explores how “tallest” can be defined in different ways, comparing mountains by height above sea level and by ...

Some roads exist purely to get you from point A to point B, and then there are the ones that make you forget there even was a ...

Every year, hundreds try to reach the summit but continuous flow of climbers comes with a cost: waste left behind that affects the fragile ecosystem.

Over 500 million years ago, during the Cambrian period, all major animal phyla appeared rapidly in what is known as the ...

Nature likes to show off, and it has a way of sculpting ice into jaw-dropping masterpieces. These glaciers look like ...

New research reveals when glaciers around the world will vanish and why every fraction of a degree of warming could decide ...

Bouldering is particularly winter-friendly because, by definition, the climbs are short, so there’s no time to “numb out.” ...

Unlike tourist-packed destinations, there are places so perilous that only a few dare to visit. The dangers come from violent ...

Glaciers worldwide are racing toward extinction, with warming dictating whether thousands survive—or vanish forever.

Climate negotiations may move at a glacial pace, but the irony is that the pace of glacier change is rapidly overtaking our ability to adapt to it and protect the most vulnerable people. The science ...