Spanning approximately 220,000 light-years across, the Andromeda Galaxy is the largest galaxy of the Local Group, which also ...

The Andromeda Galaxy's family of dwarfs are an enigma. First it was the unusual flat plane around which more than half of ...

"A supercomputer simulation shows many galaxies merging over time. The parts of galaxies we can see are glowing stars forming ...

Specifically, all but one of Andromeda's satellites lie within 107 degrees of the line pointing towards the Milky Way, a region covering only 64% of the host galaxy's surroundings. Until now ...

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.

This event could explain the disorderly movement of its dwarf galaxy companions—a feature not observed around the Milky Way. A Turbulent History Hidden In Plain Sight At 2.5 million light-years ...

Recent research has cast doubt on the certainty of the Milky Way-Andromeda galaxy collision, suggesting the event may not be as inevitable as once thought. Traditionally, astronomers have ...

Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...