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.

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

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.

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

California is banning them in schools. The FDA says they’re fine. But synthetic dyes added to food to make them more colorful have a long, troubled history.

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.

The U.S. Department of Energy has been funding development of small modular reactors. On October 16, the DOE announced $900 million in funding for deployment of small modular reactors. And both ...