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.

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

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

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at ...

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

Astronomers believe they've discovered a spiral structure inside the Oort cloud that surrounds our solar system.

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

Astronomers have discovered that our solar system traveled through a dense, star-forming region near Orion about 14 million ...

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

The SPHEREx telescope will create the most colorful map of the cosmos, while the four satellites of the PUNCH mission track ...

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