Browse a gallery of the U.S. Air Force's high-altitude balloon experiments and the researchers, scientists, and test pilots who made them possible.

Most of my most cherished camping adventures have taken place in the high country. As soon as winter had well and truly been ...

The 33-year-old's symptoms may have been exacerbated by underlying conditions, including a recent bout of COVID-19.

In recent years, Hainan has developed its low-altitude economy according to local conditions, leading the country in ...

More than one in three healthy adults developed cardiac arrhythmias, most commonly bradyarrhythmias, while climbing Mount ...

Baking at high altitude isn't the same as whipping up desserts at sea level. So when you're craving brownies in the Rockies, ...

Its high-altitude, solar-powered aircraft aim to succeed where Facebook’s infamous Aquila failed by refining the tech and embracing more markets. It’s hard to believe that Facebook’s ambitious plan to ...

The Kyrgyz of the Pamir Mountains in northern Afghanistan live at a high altitude where no crops grow. Survival depends on the animals that they milk, butcher, and barter. On my last afternoon ...

The American Missile Defense Agency awarded defense contractor Lockheed Martin the contract to make the Next Generation ...

Going up was fine. It was when we stopped at the top of Liftoff, a 150-foot-tall open-air elevator of sorts that resembles a ...

With the naked eye, you can't see the weather in space, or feel the cosmic rays beaming down to Earth—but they can impact ...

On 17 April, 1853, the local government of Mendoza took a decision that would have profound implications for the evolution of ...