Trump and Robert F. Kennedy, Jr. plan to tie Tylenol use during pregnancy and folate deficiencies to rising autism rates—but ...

The San Francisco Bay Area was rattled early this morning by a magnitude 4.3 earthquake along the Hayward fault line ...

Seemingly contradictory materials are trapped together in two glittering diamonds from South Africa, shedding light on how ...

The common pain reliever is safe when used as directed, research shows. But scientists remain puzzled by one aspect: how it ...

To celebrate Scientific American’s 180th anniversary, we invited readers to place our magazine covers in the wild. See our ...

The Sordid Mystery of a Somalian Meteorite Smuggled into China M illennia ago a piece of the sky fell toward East Africa, ...

Scientists have found thousands of planets outside our solar system, called exoplanets, throughout the galaxy. This artist’s ...

The idea was that high-powered lasers would propel tiny probes to 20 percent of the speed of light, impelling them with ...

As the slope flattened out, the landslide blew open the channel and spread out, depositing a wall of uprooted trees just ...

Roth was standing at the edge of a cave in Pirkanmaa, Finland. Inside, he knew, was a geocache: a container that was stashed ...

While our understanding of Alzheimer’s disease is far from complete, the latest therapies, and others in more than 100 ...

Three vaccines were on the agenda for this week’s meeting of ACIP, the CDC’s key advisory panel on immunization: the combined ...