Our neighboring Andromeda Galaxy (Messier 31, or M31) appears to sport a lopsided arrangement of satellite galaxies that defy ...

A mysterious cluster of 60 stars may be just another Milky Way star cluster, or it may be one of the smallest galaxies ever ...

Andromeda, also known as M31, is the spiral galaxy closest to the Milky Way and, like our galaxy, is surrounded by a group of smaller dwarf galaxies that orbit around it. What has surprised scientists ...

Smaller satellite galaxies we see around larger galaxies like Andromeda or our own Milky Way are thought, essentially, to be there because they haven't fallen in quite yet. "Astronomers suspect ...

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Spanning approximately 220,000 light-years across, the Andromeda Galaxy is the largest galaxy of the Local Group, which also contains the Milky Way. Miguel Claro is a professional photographer ...

Along with a number of neighbouring galaxies — including our closest galactic neighbour, the Andromeda Galaxy — it forms what ...

All but one of M31's brightest 37 satellites are on the side of the Andromeda spiral that faces our Milky Way galaxy – the odd one out being Messier 110, which is easily visible in amateur ...