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 ...

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

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

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

The 10th century treatment called Bald’s eyesalve attacks microbes in multiple ways. Molecule mixtures from it may inspire ...

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

Gaps in early warning systems and community preparedness contributed to the high death toll from Nepal’s debris flow.