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.

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

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

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

The disc of plasma surrounding the black hole at the heart of the Milky Way is constantly emitting flares both large and small.

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

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

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

The inner Oort cloud, between 1,000 and 10,000 AU from the sun, displays a spiral formation with arms that extend 15,000 AU.

NASA's SPHEREx and PUNCH missions successfully launched aboard a SpaceX Falcon 9 rocket, marking a significant step in space ...

The Solar System's journey around the Milky Way's center takes it through varying galactic environments. "Imagine it like a ship sailing through varying conditions at sea," explains Efrem Maconi ...