A diver found a trove of medieval artifacts on the Mediterranean seabed, including a 900-year-old sword wielded by a crusader knight

Physicists propose a new plan to "slice and dice" incoming asteroids that could save Earth from a deadly calamity.

Astronomers say strange radio signals around old, inactive stars may be the shimmering auroras of four alien worlds.

NASA's DART mission will crash a spaceship into an asteroid at 15,000 mph. The mission launched in November.

This rare species of isopod may have adopted a salmon-like color from the fish it was parasitizing, aquarium officials say.

NASA's Mars Reconnaissance Orbiter spied the little Perseverance Rover chugging around Jezero Crater in a striking new image.

Scientists have analyzed the enormous Bernardinelli-Bernstein comet, and predict it will come within 11 AU of Earth in the next 10 years.

In the star system GW Ori, three stars orbit one another. New research suggests there's probably a planet in the mix, too.

A moderate solar storm is headed for Earth on September 27, 2021, with auroras predicted to light up the sky much further south than usual.

The Southwestern United States is experiencing the worst drought in the region's history, a new NOAA report finds.

Astronomers discover that two large clouds of gas in the Taurus and Perseus constellations are separated by a 500 light-year-long 'cavity', thanks to an ancient supernova.

An asteroid measuring about three times the size of the Statue of Liberty will sail harmlessly by Earth on Sept. 22, the 2021 fall equinox.

Mysterious 'empty sky' gamma-ray bursts could be the work of distant supernova explosions, a new model suggests.

Scientists predict that an ancient supernova will reappear in the sky for a 4th time in the year 2037, thanks to the meddling influence of dark matter.

Italian naval officers found a dead angular roughshark (also known as the pig fish) in the waters near Elba.

Researchers caught rare footage of a juvenile angel shark swimming off the UK coast, offering hope that the critically endangered species is still breeding.

ISS astronaut Thomas Pesquet captured a trippy new photo of orange 'airglow' streaming past the sideways Earth.

Scientists detected a repeating radio signal near the center of the Milky Way, and it's unlike anything else they've ever studied.

A catastrophic solar storm could take huge sections of the Earth offline for weeks or months, a new research paper warns.

Following a botched first attempt, NASA's Mars Perseverance rover successfully collected a pencil-thin Martian rock core sample.

Scientists analyzed a rare brown dwarf named 'The Accident' and found that it is an exceptionally old, ultra-cold failed star unlike any other.

Astronomers detected the radio 'colors' of a fast radio burst (FRB) for the first time, proving that the source was not a binary star system.

Martian 'blueberry' stones may hold evidence of the planet's watery past, a new study of similar minerals on Earth suggests.

NOAA researchers stumbled upon a gang of great white sharks scavenging a dead humpback whale calf off the coast of Boston. Now, they're sharing the footage.