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

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

Observations show Andromeda has a more active star formation history than the Milky Way, potentially due to a past galactic collision. NASA recently released images of the Andromeda galaxy ...

In the years following the launch of NASA's Hubble Space ... But only one galaxy stands out as the most important nearby stellar island to our Milky Way -- the magnificent Andromeda galaxy ...

Peering deep into the dusty heart of our Milky Way galaxy using infrared vision, NASA’s Hubble Space Telescope reveals a rich tapestry of more than half a million stars. The Milky Way Galaxy ...

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

Previously, scientists thought the entire universe existed within the Milky Way, per the NASA statement. But when Andromeda proved to be its very own galaxy, astronomers realized the universe was ...

NASA recently released images of the Andromeda galaxy, an "enticing empire of stars" that can be seen with the naked eye if weather conditions are just right. About 100 years after astronomer Edwin ...