This week marks two years since the death and 95 years since the birth of Tom Hornbein, one of the great figures of American mountaineering. Best known for his 1963 first ascent of Everest’s West ...

If you've ever traveled on an airplane, you know that masks can drop down to supply oxygen in the case of an emergency. Airline oxygen masks have about a 15-minute supply and typically fall when an ...

Yes, we know that flying is typically considered the safest way to travel. This doesn't change the fact that we're hurtling along tens of thousands of feet in the air, in a vehicle that still seems ...

Talk about fight or flight. Passengers on a recent United Airlines flight were sent into a panic when an automated emergency announcement came on to tell them to put on their oxygen masks — even ...