A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

To celebrate the 100-year Edwin Hubble discovery that Andromeda was a galaxy outside our own, astronomers release the most ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

"Little red dot" galaxies discovered by the James Webb Space Telescope in the early cosmos appear to be ruled by supermassive black holes that are 1,000 times too massive.

The plasma jets of this cosmic giant span 3.3 million light-years from end to end - over 32 times the size of the Milky Way ...

The Andromeda Galaxy, our nearest galactic neighbor, is a majestic spiral galaxy like the Milky Way. Let’s uncover some ...

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

"It looks like it has been through some kind of event that caused it to form a lot of stars and then just shut down” ...