Video of the largest photomosaic ever assembled from Hubble Space Telescope observations. The camera pans along the Andromeda Galaxy's vast disk which is over 200,000 light-years across. (Credit: ...

It's also great for things that are much closer, like our nearest galactic neighbor, the Andromeda Galaxy. Despite its nearness, photographing the entire Andromeda Galaxy is no easy task.

A close-up view of a prodigious number of stars in the Andromeda galaxy. Credit: NASA / ESA / B. Williams (U. of Washington) The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 ...

The Hubble Space Telescope has produced the most comprehensive survey of the Andromeda galaxy, revealing new clues about its history. The Hubble survey, assembled from over 1,000 orbits and ...

But only one galaxy stands out as the most important nearby stellar island to our Milky Way—the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked eye on a very clear ...

But only one galaxy stands out as the most important nearby stellar island to our Milky Way -- the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked eye on a very clear ...

His remark holds true now, nearly half a decade later. At 2.5 million light-years away, the Andromeda Galaxy—officially called Messier 31—is the farthest object visible to the naked eye.

This illustration shows a stage in the predicted merger between our Milky Way galaxy and the ... [+] neighboring Andromeda galaxy, as it will unfold over the next several billion years.

That’s almost half the distance to Andromeda. Have you ever seen the Andromeda galaxy? Go outside after dark this month and look high up in the northeast sky and you’ll find the W-shaped ...