A new ultra-faint dwarf galaxy has been discovered in the vicinity of Andromeda (M31), the Milky Way's large neighboring ...

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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This illustration shows a stage in the predicted merger ...

A massive star in the Andromeda galaxy brightened in infrared light starting around 2014, then faded from optical view and ...

Andromeda has gained an exceptionally faint companion that may trace its origin back to the early universe. The newly ...

A newly confirmed dwarf galaxy orbiting Andromeda contains so few stars that automated detection pipelines ignored it entirely — and that invisibility may be precisely what makes it scientifically ...

An international team of astronomers reports the discovery of a new dwarf galaxy, which they have named Pegasus VII. The newfound galaxy, which lies about 2.4 million light years away, was identified ...

The Andromeda Galaxy is revealed in unprecedented detail in four archive observations from the NASA/ESA Hubble Space Telescope. They show stars and structure in the galaxy’s disk, the halo of stars ...

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 ...

Andromeda lies 2.5 million light-years away from the Milky Way, a spiral galaxy similar to our own that has allowed scientists to better understand our galactic home. A new composite image reveals our ...