Minnesotans and others around the country got a rare treat on Nov. 11 with an aurora borealis supercharged by the sun.

A Mission That Went Wrong at the Edge of Space Two hours into a routine surveillance flight in 2006, U2 pilot Kevin Henr ...

Private pilots must comply with FAA regulations (14 CFR 91.211) requiring supplemental oxygen for pilots above 12,500 feet MSL for over 30 minutes, continuously above 14,000 feet MSL, and for all ...

According to NASA, the variety of colors depends on altitude. At the very top above 120 miles in the air, oxygen atoms glow ...

The Aurora Borealis, which are commonly known as the Northern Lights, are a captivating phenomena.

You waited what felt like a lifetime for this hunt. Don't let altitude sickness cut it short. If you want to learn how to prevent altitude sickness, you need to understand how it can occur. And few ...

Proponents of oxygen bars say they offer many benefits, but there's little scientific evidence to support the claims. After arriving in Colorado, where I was staying at a ranch some 8,000 feet above ...

On September 22, 2025, the Polish mountaineer Andrzej Bargiel accomplished an astounding feat when he climbed and skied from ...

The allure and exhilaration of skiing at high altitudes also brings a lesser-discussed challenge: thinner air with reduced oxygen levels, which can lead to altitude sickness, affecting physical ...

If you want to learn how to prevent altitude sickness, you need to understand how it can occur. And few people are as familiar with how it can ruin a hunt as Cody Arnold, who worked as a hunting guide ...