Some scientists want to shift focus to the teen mental health crisis. But the course of happiness is too complex for simplistic theories, experts warn.

New experiments show that an app developed by researchers can boost snoozing users’ likelihood of knowing when they are having a dream.

A 3-D map of the strange remains of a supernova seen in 1181 traces the odd tendrils of gas that jut out for several light-years in all directions.

In addition to studying the world’s only nonmigratory blue whales, marine biologist Asha de Vos seeks to change her compatriots’ attitudes toward the ocean.

The black hole’s mass is over half that of all the stars in the surrounding galaxy, a record for any galaxy hosting a quasar.

Swine can act as so-called “mixing vessels” for human and bird flus, giving avian viruses an opportunity to adapt for spreading in people.

As construction of a pipeline nears, an effort to preserve an Indigenous trail in Canada tests whether heritage management can keep up with advances in archaeology.

Tweaking the chemical composition of a parrot-specific pigment can shift feathers from red to yellow or green.

New finds in the Finding Fluorescence site include a Japanese beetle with a glowing blue mouth and a mushroom that gleamed bright red under its cap.

Stonehenge’s central stone, known as the Altar Stone, may have had Scottish and not Welsh origins, researchers say. The finding suggests that Late Neolithic ...

Older adults are at higher risk of suffering health consequences during heat waves. Fans may not do enough to prevent that.

Editor in chief Nancy Shute discusses efforts of Indigenous people in British Columbia to preserve ancient trails.