The human brain is built to hear voices. Speaking connects us to other people — and ourselves. What do our voices reveal about ourselves?

Microblazars — a miniature version of blazars — may be responsible for mysterious ultra-high-energy particles.

One theory points to a long-awaited supersymmetric particle called a ‘higgsino.’ But that idea has some issues.

A dead star’s wreckage may be the birthplace of a new planet. The existence of second-generation planets was predicted ...

Scientists graded every river and stream in the contiguous United States, flagging specific repairs each one needs to support ...

A waterborne pathogen flourishes while toads shelter underground. The finding may help conservationists rethink how to ...

A female humpback whale may have spent days with her stillborn calf. This rare sighting may suggest that baleen whales ...

Avian flu, overfishing, and a super El Niño have decimated Peru’s largest colony of Humboldt penguins. Scientists are holding ...

Uneven supernova explosions may explain the unusual mix of elements in Milky Way stars once thought to be evidence of ...

Naegleria amoebas’ exploration skills and crawling behaviors could help explain how the brain-eating variety travel into ...

Season 2 follows people losing their ability to speak — and the AI and brain implants helping them find their voices again.

Scientists testing potential treatments for sleep apnea made an unexpected discovery. How quickly people react may depend on ...