His derring-do and unusual lung capacity led him to make record-breaking dives of more than 200 feet into the Atlantic without wearing a scuba tank or fins.

This marks the deadliest avalanche in California history. Here's a look at what we know.

Coal is the second most expensive source of power for the US grid, eclipsed by gas, wind, solar, hydro—everything other than ...

Dental amalgam fillings have a bad rap. Advocates argue they are toxic and can harm people. But how common are they?

The Frog Lake huts area on the back side of Castle Peak is used for a lot of backcountry recreation by skiers, snowboarders ...

What's the wildest thing you've ever seen in the emergency room?

A neutron star’s teaspoon of material would weigh billions of tons. Venus rotates backwards compared to most planets. Space smells like seared steak, according to astronauts. There are more trees on ...

A 33-year-old man survived for 48 hours without his lungs, after a medical team replaced the organs with an external artificial-lung system 1 that it developed to keep him alive until he could receive ...

When surgeons removed a 33-year-old woman’s right lung as part of her cancer treatment in 1995, they expected a dramatic and permanent reduction in her breathing power. But that’s not what happened.

Colino is a contributor for TIME. Colino is a contributor for TIME. Many people don’t realize that lung cancer is the leading cause of cancer deaths in the U.S. In fact, it’s responsible for more ...