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 ...

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.

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.

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.

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

Data from the OSIRIS-REx mission to Bennu place a ceiling on the strength of a hypothetical fifth force that could explain dark matter’s origins.

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 ...