Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

Astronomy news today is packed with discoveries about the Sun, including tiny solar loops and hidden engines that drive solar ...

At 3 a.m. on a crisp May night in Chile, all seemed well with the world’s largest digital camera. Until it didn’t. Inside the newly built Vera C. Rubin Observatory, site project scientist Sandrine ...

DARC is designed to track multiple small moving objects in geosynchronous orbit — all around the globe, 24 hours a day. A powerful new radar system designed to detect and track objects in distant ...

The case for a newborn ocean on Saturn's moon Mimas continues to build.