The HER Salt Lake Contraceptive Initiative’s approach, which centered the user and made refills easy, meant all types of ...

It’s not easy living the high life. Take it from the Andean leaf-eared mouse, Earth’s highest-dwelling mammal. To tolerate ...

Marine cloud brightening could cool part of the Pacific and weaken extreme El Niños, simulations suggest. But the approach ...

Two studies of Neandertal remains suggest their newborns were about the same size as those of modern humans but developed ...

The ambitious expedition aims to fill data gaps about the glacier-sea boundary to predict when the world might tip into a ...

The gold standard of scientific review, peer review by researchers’ colleagues, is in crisis. AI might offer a solution but ...

There’s never been a good method to check for violations of the Outer Space Treaty’s prohibition of nuclear weapons in space.

A majority of 8th-graders and roughly a third of 10th- and 12th-graders do not see great risk in using fentanyl once or twice ...

In the world’s largest seagrass restoration project, scientists have observed an ecosystem from birth to full flowering. As part of a 20-plus-years project, researchers and volunteers spread more than ...

A whole-genome analysis of Beefalo, a hybrid bison-cattle breed, suggests very few individuals have any bison DNA at all, a ...

Reassuring evidence on acetaminophen’s safety in pregnancy keeps growing, with another study that compares siblings with ...

The Smithsonian Natural History Museum’s latest exhibit, “From These Lands,” connects visitors with America’s natural history ...