The Andromeda Galaxy, our Milky Way’s colossal neighbor, lies 2.5 million light-years away yet shines visibly in dark skies.

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda ...

The Andromeda Galaxy, located 2.5 million light years away, has fascinated observers for centuries. Once believed to be part ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data ...

Andromeda never looked as good as it does in a new image from the Chandra X-ray observatory and a range of powerful telescopes. A fitting tribute to dark matter pioneer Vera Rubin.

Particular stars called Cepheid variables allow astronomers to determine distance, and Hubble spotted one of these within M31 ...

More The Andromeda galaxy's spiralling stars are played as musical notes in a new NASA observatory video, creating a cosmic crescendo that's out of this world. The sonification video, released by ...

Space & Spaceflight New Images Show Andromeda Galaxy as You’ve Never Seen It Before The closest galactic relative to the Milky Way helped astronomers discover dark matter in the 1960's.

When layered, they depict a vibrant and active galaxy reminiscent of our own—and the information is already helping experts expand on Andromeda’s ongoing life story.

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...

The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about 2.5 million light-years. Astronomers use Andromeda to understand the ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data ...