How do you get images downlinked from 30 km up? Hams might guess SSTV — slow scan TV — and that’s the approach ...

Studies published in the journal American Heart Association have shown that visiting high-altitude locations may be dangerous for people with high blood pressure or certain heart conditions.

Every flier waits to hear those magic words after takeoff: “We have reached cruising altitude; you’re now ... transport category aircraft can fly at high altitudes, but their performance ...

Traveling at high altitude can be hazardous. The information provided here is designed for educational use only and is not a substitute for specific training or experience. Princeton University and ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. Back in 2021, I wrote about ...