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, ...

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

In a groundbreaking discovery, NASA's Pleiades supercomputer has revealed an unexpected spiral structure within the inner Oort cloud, challenging long-held beliefs about our solar system's outer ...

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

Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

Millions of years ago, our Solar System traveled through a densely populated galactic region and was exposed to increased interstellar dust.

At the center of our galaxy, hidden behind dense clouds of gas and dust, the black hole Sagittarius A* rotates rapidly, ...

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...

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