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

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

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 ...

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

A century ago, Edwin Hubble first established that ... the most important nearby stellar island to our Milky Way -- the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked ...

It was a spiral galaxy. Hubble wrote to Shapley ... Today, we take for granted that the universe is filled with galaxies, some spirals like the Milky Way and Andromeda, some giant ellipticals, and ...

The Hubble Space Telescope has captured this striking image of an unusual galaxy with a bullseye structure, as nine rings ...

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 can be seen with the naked eye on a clear autumn night as “a faint ...

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

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

The Andromeda galaxy is approximately 2.5 million light-years away from the Milky Way. The observations recorded by Hubble yield new clues about the history of Andromeda, which looks markedly ...