Stephanie Pappas

Scientists have discovered an extremely rare star system that is doomed to explode in a 'kilonova' caused by the merger of two neutron stars.

Eight signals from far-off stars probably aren't aliens, but the machine learning method that found them holds promise in the search for real extraterrestrials.

Researchers have created a never-before-seen form of ice with a disorganized structure and a density almost exactly that of liquid water.

The full moon will be quite distant from Earth on Feb. 5, making it a 'micromoon'.

The amount of energy released in an earthquake is controlled by how much of the crust breaks. The good news is, we're not likely to see a magnitude 10.

Deserts are full of oddball animals. Here are 15 of the strangest.

Asteroid 2023 BU will be closest to Earth on Thursday (Jan. 26) at 7:27 p.m. EST (2127 GMT).

Diver Yosuke Tanaka swam with a giant squid in the Sea of Japan near Toyooka City in Hyogo Prefecture.

Unlike their portrayal in Jurassic Park, curved-clawed dinos may have used their sharp appendages to pin and grasp, not slash.

Binary black holes may be more common than astronomers realized, according to new research.

A type of crystal that breaks the rules of ordinary crystallography has been found in a tube of melted sand from Nebraska.

A new search for alien signals focuses on planetary transits, when exoplanets pass right in front of their suns.

The first full moon of the new year will be a 'micromoon,' with the moon at its farthest point from Earth.

The Quadrantid meteor shower is considered one of the best to view all year. Here's how to maximize your chances of seeing shooting stars.

Scientists are getting a better handle on how fast Greenland's ice is flowing out to sea. Old models that used Antarctica as a baseline were way off the mark.

A new paper claims that intelligent aliens would only be interested in contacting the most technologically advanced planets, and Earth doesn't make the cut.

An unprecedented audio recording could reveal key details about extreme weather on the Red Planet.

A fossil skull from a toothy early relative of today's birds shows a weirdly modern skull configuration, raising new questions about the early evolution of birds.

The annual Wildlife Photographer of the Year Competition People's Choice shortlist highlights animals from ecosystems across Earth.

After 30 years of planning, construction of the SKA Telescope, set to be the world's largest telescope array, began in South Africa on December 5.

Fangy Whatcheeria measured up to 6.5 feet (2 meters) long, and more than 300 million years ago, it was the apex predator in the sinkholes-turned-lakes of the American Midwest.

A new method of using the machinery of photosynthesis to make methane is 10 times more efficient than previous attempts.