University of Arizona astronomers have taken the sharpest, most detailed infrared pictures ever of the Andromeda galaxy. They show that our neighbor spiral galaxy is a surprisingly disturbed and ...

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

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 ...

Dots show locations of stars in the spectroscopic survey superimposed on an image of the Andromeda galaxy (M31). Dots are color coded according to their velocity relative to the Milky Way, as measured ...

A team of astronomers from Tohoku University, University of Tokyo, NAOJ, University of California Santa Cruz, and other universities (note 1) have discovered new stellar streams in a vast region ...

An amateur astronomer discovered an ultra-faint dwarf galaxy, dubbed Pegasus V, hanging out on the outer fringes of the Andromeda Galaxy. The revelation came while astronomer Giuseppe Donatiello was ...

This is the largest photomosaic yet assembled from Hubble Space Telescope observations. It is a panoramic view of the Andromeda galaxy, located 2.5 million light years away from Earth. This mosaic ...

This is the largest photomosaic ever assembled from Hubble Space Telescope observations. It is a panoramic view of the neighboring Andromeda galaxy, located 2.5 million light-years away. It took over ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. When will the Milky Way collide with the Andromeda Galaxy?

An unusual ultra-faint dwarf galaxy has been discovered on the outer fringes of the Andromeda Galaxy thanks to the sharp eyes of an amateur astronomer. Follow-up by professional astronomers revealed ...

Andromeda, the Milky Way's neighboring spiral galaxy, may be a cosmic cannibal that has been growing by chowing down on smaller galaxies. Astronomers reached this conclusion by observing a globular ...