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

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

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

Hubble's discovery of expanding galaxies confirmed the universe's vastness, laying the foundation for the Big Bang theory and ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

"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” ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly ...

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

Chris Impey does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

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