Water is the universal yardstick of comet science, the baseline for measuring how sunlight drives a comet's activity and ...

After decades of searching, astronomers have imaged two supermassive black holes in orbit around each other at the heart of ...

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

While astronauts do not leave home to go to war or face combat, families of space travelers may share a few commonalities ...

NASA astronaut Don Pettit, an accomplished amateur photographer, captured the stunning "train" of SpaceX Starlink broadband ...

A new collage from the James Webb Space Telescope reveals eight dazzling examples of gravitational lensing.

Delta Aurigid meteors appear each year as Earth careens through a debris trail left by an unknown comet. The shower is active ...

These binoculars guide you through the night sky in real time, with a database of 200,000 stars, and in this hands-on test, I ...

Four proposed sun-gazing spacecraft, working together, could help speed up space weather warnings by 40%, a new study ...

As the U.S. government shutdown halts NASA updates, a JAXA astronaut's photos show that work continues on the space station.

The sun's returning coronal hole could stir up geomagnetic storms and dazzling auroras under clear, dark skies this weekend.

As on that day, Super Heavy will come back to Earth for a controlled splashdown in the Gulf of Mexico. It will be the second ...