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

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

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

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

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

NASA has launched the SPHEREx telescope to map the entire sky and study the universe's beginnings. The device was launched ...

Astronomers have discovered strong evidence for the closest supermassive black hole outside of the Milky Way galaxy. This ...

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

Simulated stellar explosions show that massive early stars could have created plentiful water for future stars and planets to ...

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.

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