The coronavirus is straining the global health care system, with one piece of lifesaving medical equipment in particularly scarce supply: mechanical ventilators. A ventilator helps patients who cannot ...

There's nothing like hearing your pilot say "Ladies and gentlemen we've reached our cruising altitude of 37,000 feet. Feel free to move about the cabin but please keep your seatbelt on when you're in ...

In a hot spring at Yellowstone National Park, a microbe does something that life shouldn’t be able to do: It breathes oxygen and sulfur at the same time. Take a deep breath. A flow of air has rushed ...

We think of oxygen as life, sustenance, a literal breath of fresh air. But it's actually a very reactive element. Anyone who's burned a log has witnessed this firsthand. So why do so many life-forms ...