Our Solar System is in motion and cruises at about 200 kilometres per second relative to the center of the Milky Way.

Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about ...

Even the little-understood Oort Cloud, at the outer edges of our solar system beyond view, has a partly spiral structure.

NASA’s James Webb Space Telescope (JWST) is transforming our view of the universe, revealing celestial objects in ...

A NASA telescope was launched into space from California on Tuesday for a mission to explore the origins of the universe and ...

Update: Delayed again. Now targeting Friday, March 7 for launch and March 6 for prelaunch news briefing. NASA and SpaceX are ...

A discovery made by a team led by researchers at the University of Michigan tugs at the seams of some key cosmic lessons we ...

NASA’s SPHEREx mission has successfully communicated with Earth, marking the start of an ambitious journey to map the cosmos.

SPHEREx hopes to solve some of the universe's biggest mysteries, while PUNCH will study the sun’s outer atmosphere, the corona. Here's what to know.

After a series of delays, NASA has successfully launched two groundbreaking missions from California. The primary payload is ...