Just because you can doesn’t mean you should

Park rangers at Yellowstone shot and killed an armed man on the morning of July 4. Here’s what we know about the incident.

Over a dozen athletes put 66 sunglasses to the test in a range of outdoor activities. These shades performed the absolute best.

There are plenty of hungry predators roaming the USA. But the deadliest ones for humans may not be the those you expect.

There are plenty of climbs to choose from in Boulder, Colorado, but articles editor Fred Dreier obsessively rides up and down Flagstaff Road, clocking hundreds of ascents each year.

More resorts should place as much marketing effort on safety as they do on selling tickets

Drugs that contain resveratrol, a component of red wine that supposedly prevents the cellular damage that is part of aging, are not working as they should, New Scientist reports. The drugs are supposed to activate the protein SIRT 1 to combat aging, but experiments have shown that they don't.

The missing sub’s inventor repeatedly ignored warnings about his vessel, arguing that regulations stifled progress

Baffin, from Arc’teryx, follows three climbers as the try a big wall free ascent of Great Sail Peak.

While most of the ultra-trail running crème de la crème are in Chamonix for UTMB, the 36-year-old legend is also in the Alps for a massive undertaking of his own. We sat down with him in person to unpack his relationship with the sport and himself.