Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from the new galaxy.

Astronomers spent a decade compiling this special image with the Hubble Space Telescope and then stitched together 600 photos ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

Centaurus A: NGC 5128 is a galaxy in constellation Centaurus, discovered in 1826 by Scottish astronomer James Dunlop. Messier ...

In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...

The Bullseye is now confirmed to have nine rings, eight of which are visible to Hubble. Researchers confirmed the existence ...

After a blue dwarf galaxy shot through it like an arrow, the large Bullseye now has nine rings—six more than any other galaxy ...

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...

"These two supernova remnants are helping us to better understand the dynamics of our home galaxy’s neighborhood," ...

Einstein predicted that massive objects bend light as it passes through their gravitational field. This week, a new telescope ...