Aging men often lose the Y chromosome in a growing number of their cells—and it may be far more dangerous than once believed. This loss has been linked to heart disease, cancer, Alzheimer’s, and ...

A nearby galaxy is behaving strangely—and now scientists know why. The Small Magellanic Cloud’s stars move in chaotic ...

Researchers have created a cutting-edge catalyst that turns CO2 into methanol more efficiently than ever before. Instead of using clumps of metal atoms, they engineered a system where each single ...

A shingles vaccine might double as a powerful heart protector. In people already at high risk, it cut major cardiac events by 46% and deaths by an impressive 66% within a year. Scientists think ...

The largest review of medicinal cannabis to date found it doesn’t effectively treat anxiety, depression, or PTSD—despite millions using it for those reasons. Researchers warn it could even make mental ...

A mysterious spike of platinum buried deep in Greenland’s ice has long fueled theories of a catastrophic comet or asteroid strike 12,800 years ago—possibly triggering a sudden return to icy conditions ...

Many people believe closing their eyes sharpens hearing, but that is not always true. In noisy settings, participants struggled more to hear faint sounds with their eyes closed, while matching visuals ...

Scientists have found a way to make one of the most aggressive brain tumors vulnerable to the immune system. A single injection of a modified virus can invade glioblastoma, kill cancer cells, and ...

Eating large amounts of ultra-processed foods like chips, frozen meals, sugary drinks, and packaged snacks may significantly raise the risk of serious heart problems. In a major U.S. study, people ...

Ravens have long been thought to follow wolves to find food, but new research shows they’re far more strategic. By tracking both animals in Yellowstone, scientists discovered that ravens memorize ...

Scientists have mapped the genetics of cancer in cats for the first time at scale, uncovering major overlaps with human ...

Tropical peatlands, some of the planet’s largest underground carbon stores, are now burning at levels never seen in at least ...