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.

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.

If you want to have a dream where you know you’re dreaming, you might be in luck. A phone app seems to boost users’ odds of having lucid dreams. Before bed, the app has users listen to a specific ...

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.

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.

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.

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.

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.

At least one pig has picked up bird flu amid an outbreak in poultry on a backyard farm in central Oregon. While the infection appears limited to one farm so far, the discovery has raised new alarm ...

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 ...