Andromeda's lopsided galaxy system challenges standard cosmology, Nature Astronomy (2025). DOI: 10.1038/s41550-025-02481-2 Provided by Leibniz Institute for Astrophysics Potsdam ...

The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...

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 ...

Both the Milky Way and the Andromeda galaxies (M31) are part of what's known as the Local Group (LG), which also hosts other ...

Scientists have reported something unexpected about the distinct populations of stars that make up the Triangulum galaxy: In this satellite galaxy, a close companion of the much larger Andromeda ...

The Andromeda Galaxy, or M31, is our largest galactic neighbor. It sits approximately 2.5 million light-years away The Andromeda Galaxy, or M31, is our largest galactic neighbor.

A collision between our Milky Way galaxy and its largest neighbor, the Andromeda galaxy, predicted to occur in about 4.5 billion years, has been anticipated by astronomers since 1912. But new ...

The Andromeda Galaxy is, officially, a monster. Astronomers studying our next-door neighbor have discovered that the huge spiral galaxy has quite the cannibalistic past.

The smallest, dimmest galaxy orbiting Andromeda to date. Image: CFHT/MegaCam/PAndAS (Principal investigator: Alan McConnachie; Image processing: Marcos Arias A group of astronomers has discovered ...

Researchers using the Hubble Space Telescope have mapped out the enormous halo of gas around the nearest major galaxy to us, the Andromeda Galaxy. Skip to main content. Menu ...