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NASA will soon embark on a first-of-its-kind rescue mission, sending a robot to save a space observatory falling to Earth. The Neil Gehrels Swift Observatory is a space observatory that uses three telescopes to study gamma-ray bursts and their ...

Since at least 1960, submarine personnel in Antarctic waters had been hearing a mechanical, repetitive quacking -- pulses between 60 and 100 Hz arriving every 1.6 to 3.1 seconds. They named it the bio-duck. Acoustic researchers called it "one of the ...

CERN's Large Hadron Collider has collided its last hadron. The 27-kilometer (17-mile) ring, buried dozens of meters underground on the French and Swiss border, begins decommissioning today. The collider will not be dismantled, but upgraded as the ...

Australia's ban on social media accounts for children has failed to produce an immediate drop in use among adolescents, according to an analysis published this week in The BMJ. The study casts doubt on the world's first national age-based restriction ...

Doctors in Spain suspected that a man suffering from chronic headaches had brain cancer. A scan showed a number of poorly-defined lesions, typical of cancer that has spread from elsewhere in the body. But when they conducted a higher-resolution MRI,

Robert Bradbury proposed nesting Dyson spheres around a star, each computing with the waste heat of the one inside it. The outermost shell runs near interstellar cold.

Cornell University researchers have restored worn lithium-ion battery packs to 95% of their original capacity by dissolving the "passivating electrode-electrolyte interphase"--the crust-- that builds up on them. Direct electrode-to-electrode ...

In 2001, red rain fell on Kerala for two months. Each milliliter held 9 million particles. It was algae spores. Two physicists insisted it was extraterrestrial.

A cat-borne fungus, Sporothrix brasiliensis, causes oozing ulcers and spreads to people. The CDC says the US is next.

Each October, reddish balls said to be the size of basketballs rise from the Mekong River. Thousands gather to watch.