Andromeda is the closest large galaxy to the Milky Way. And it is getting closer, as the two will merge in several billion years. It has been an object of study for centuries, but we have never seen ...

That's because Earth is embedded inside the Milky Way. This is like trying ... In total it required over 1,000 Hubble orbits, spanning more than a decade. This panorama started about a decade ...

Visual observers and astrophotographers alike can find something amazing to observe along the plane of our galaxy.

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

From vibrant star-forming nebulae to supernova explosions, check out these 7 astonishing images of deep space shared by NASA.

This panorama started with the Panchromatic Hubble Andromeda Treasury (PHAT ... A Galactic 'Train Wreck' Though the Milky Way and Andromeda formed presumably around the same time many billions ...

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

The Bullseye galaxy earned its nickname thanks to its wild number of rings. A smaller galaxy shot through its heart 50 ...

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

This panorama started with the Panchromatic Hubble Andromeda Treasury (PHAT ... Andromeda's merger history and disk evolution. Though the Milky Way and Andromeda formed presumably around the ...

NASA's Hubble Space Telescope on May 19 ... "But only one galaxy stands out as the most important nearby stellar island to our Milky Way: the magnificent Andromeda galaxy (Messier 31)." ...