Researchers were unsure whether alpha particles would aid or hinder fusion. Simulations suggest they help, by dampening turbulence.

A prehistoric scorpion was the largest ever to exist, and it may have preyed on land and freshwater species.

Most known for its role in movement, the cerebellum could compensate for flagging mental functions elsewhere in the brain.

An imaging study found early signs of coronary artery disease in people in Canada breathing air that regulators consider clean.

A newly-described dinosaur, Jian changmaensis, may have glided through northwestern China about 120 million years ago, wreaking havoc on birds.

At least a dozen animals have been found with the flesh-eating maggots. It could take more than a year to eradicate the parasite again, experts warn.

Detached tissues from the sea cucumber's tube feet and feeding tentacles survived for more than three years, a find that could shape the study of aging.

Vast permafrost beneath the upper slopes of Peru’s tallest volcano could become a regional water source as glaciers in the Andes retreat.

Editor in chief Nancy Shute discusses NASA's rocky relationship with Mars exploration.

Three species that lived about 308 million years ago challenge the idea that the first land vertebrates underwent amphibian-like metamorphosis.

The wave's round trip to Earth's core set off a fault slip along Japan's plate boundaries, revealing a seismic hazard scientists hadn't recognized.

Emerging research suggests overusing digital devices can be harmful, especially to mental health. But does being overly online truly rot our brains?

It’s just a matter of time before Sporothrix brasiliensis reaches the U.S. a CDC expert says.

Past super El Niños have brought bad flooding, deadly fires and disease outbreaks. Climate experts already expect “shockingly high” temps this winter.

Plague DNA in ancient graves near Siberia's Lake Baikal suggests the disease threatened people long before farming and crowded settlements.

The iconic one-eyed monster coming to movie screens in July in The Odyssey might have more in common with tiny water critters than with humans.

Tiny water-secreting pores appear to organize the major veins of the plant leaves into an arrangement known as a Voronoi diagram.

AI helped researchers develop an experimental blood test that might let doctors diagnose overlapping dementias.

Viking 1 kicked off the search for Martian life 50 years ago. Now NASA’s shifting priorities are putting the quest in limbo.

A cold blob of water in the North Atlantic points to a weakening of the Atlantic Meridional Overturning Circulation, researchers report.