As different coronavirus variants took center stage during the pandemic, the chances of developing long COVID fell, especially for vaccinated people.

A high dose of the psychedelic drug briefly throws the brain off kilter. Other, longer-lasting changes could hint at psilocybin's therapeutic effects.

An analysis of images spanning hundreds of years suggests a dark spot spied in the late 1600s and early 1700s is distinct from the Red Spot seen today.

A new device, modeled after a python’s teeth and grip, could double the strength of rotator cuff repairs and prevent retearing after surgery.

Tissue-targeting antibodies have been a key suspect in long COVID. Now, two studies show that antibodies from patients can cause symptoms in mice.

Radiocarbon from bomb tests reveals that plants store more carbon than previously estimated in leaves and stems, which are vulnerable to degradation.

Hydrogen bonded with sulfur may have given our world its first water after the hydrogen broke away and joined with oxygen in the planet’s crust.

Although H5N1 and its relatives can cause mild disease in some animals, these viruses are more likely to infect brain tissue than other types of flu.

The human body can go faster in the 100-meter dash and the 50-meter freestyle. But to reach full potential, our technique must be perfect.

A new technique for probing the 3-D structure of ancient DNA may help scientists learn how extinct animals functioned, not just what they looked like.

There’s a larger takeaway from some social media content about hormonal birth control side effects: People aren’t getting the information they need.

An analysis of samples from three Florida landfills shows that landfill gas can carry more PFAS than the liquid that leaches from the waste.