The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner.

You're now well and truly in the Andromeda constellation. Next, take a right-hand turn and travel roughly the same distance one more time to stumble upon a smudge in the sky, the Andromeda Galaxy.

Minor Planet Center officially designated comet SWAN25F as C/2025 F2 (SWAN) on April 8. SWAN is an instrument particularly designed to study the Sun ...

called the Andromeda Nebula (after the constellation in which it was located). It was entry 31 in Charles Messier's 18th century catalog of interesting fuzzy objects, and is thus also called M31 ...