The H3 failed during its debut launch in March 2023 but bounced back with five consecutive successes — until Sunday night.

It was the first-ever orbital launch attempt by a South Korean company. And, as often happens on debut liftoffs, something ...

Today marks the shortest day and longest night of the year as the sun reaches its lowest point in the Northern Hemisphere sky ...

"The Wisdom God Guides" was Rocket Lab's 21st and final mission of 2025. Rocket Lab launched its 21st and final mission of ...

Nebulae are some of the most breathtaking sights in the universe — vast clouds of gas and dust where stars are born, or where they meet their spectacular ends. From the delicate wisps of the Veil ...

The top sci-fi TV shows of 2025 are a mix of big franchises, returning hits, and exciting new additions. The voyages of the starship Enterprise continued in "Strange New Worlds", ...

"I think every astronomer is going to find something of value here, as NASA's missions enable the world to answer fundamental questions about how the universe got its start, and how it changed to ...

From space slugs to lunar cemeteries, these movies, games, and books show that the undead can arrive from above, as well as below.

China completed its Tiangong space station in 2022 and aims to keep it permanently occupied with crew for at least a decade. With plans to expand the orbital outpost beyond its current three-module, T ...

One of the world's largest Bitcoin mining facilities is seen leaking heat into the environment in an image captured from orbit by a thermometer satellite and recently released by the U.K.-based ...

A bevy of comets, a "blood moon" total lunar eclipse and impressive northern lights were just three of the skywatching highlights in 2025. Here's how they unfolded.

NASA's first scientific balloon flight of the 2025 Antarctica Balloon Campaign lifted off from the agency's Antarctic facility at 5:30 a.m. NZST Tuesday, Dec. 16 (11:30 a.m. Monday, Dec. 15 U.S.