SEATTLE—The last coal-fired power plant in Washington state was set to go cold at the end of the year. It would then switch ...

Ever wondered how planetary systems like our own solar system form? Thanks to the European Space Agency's Gaia space ...

Our Solar System contains tens of thousands of potentially dangerous asteroids that could wipe out an entire city, or worse.

For more than a decade, NASA’s Cassini spacecraft traced Saturn’s rings and moons, returning some of the most detailed ...

The space object, which was only recently discovered by scientists, will pass closest to Earth on Friday, December 19. Here's ...

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space ...

Eight possible cave openings found on the Martian surface look to have once had ancient streams flowing into them, suggesting they are promising places to look for evidence of life ...

Hawaii’s Gemini North telescope has captured new images of interstellar comet 3I/ATLAS with a green glow as it remerges from ...

A family-owned California winery has replaced grid electricity with onsite solar generation, reducing power costs and providing a live test site for floating photovoltaic research.

The NASA-funded ATLAS survey telescope in Chile found the comet on July 1. The comet was not visible as it raced behind the ...

Researchers have identified a distinctive ultraviolet signature of water in the interstellar comet known as 3I/ATLAS.

On December 19, avid skywatchers can catch a glimpse of the mysterious visitor through powerful binoculars or a telescope ...