The U.S. Department of Energy has approved an $8.6 million grant that will allow the nation’s first utility-led geothermal ...

The Town of Fountain Hills, along with Night Sky Tourist Star Dudes and the Fountain Hills Dark Sky Association, have ...

Analysis of the second confirmed interstellar comet to visit our solar system suggests that the alien body could be covered ...

Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

Track the interstellar Comet 3I/ATLAS, catch the peak of the spectacular 120-per-hour Geminid meteor shower (Dec 13/14), and ...

Bennu asteroid samples returned by NASA's OSIRIS-REx mission reveal life's building blocks, including sugars like ribose and ...

"I'm becoming much more optimistic that we may be able to find life beyond Earth, even in our own solar system." ...

Around 4.4 million years ago—long before humans existed—two massive, blazing-hot stars swept past our solar system. They didn ...

NASA’s Bennu samples have revealed an unexpected mix of sugars, sticky 'gum-like' material and ancient stardust. Scientists ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Previous claims of exomoon discoveries haven’t stood up well to replication, but perhaps a new method will have more success.