Though tiny, this newfound satellite galaxy around M31 offers big lessons — and questions — about how galaxies evolve.

Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

A team of astronomers recently uncovered an exceptionally small and faint dwarf galaxy located approximately 3 million ...

Astronomers have made a surprising discovery that challenges current theories of galaxy formation. A colossal disk-shaped ...

The findings reveal unusual chemical signatures and offer new insights into the behavior of novas beyond the Milky Way.

Deep observations from the James Webb Space Telescope (JWST) have revealed an exceptionally large galaxy in the early ...

A Swarm of Dwarf Galaxies Buzz Around Our Milky Way's Twin Imagine the Milky Way and Andromeda as two massive aircraft ...

The cosmos has a way of keeping astronomers on their toes. Just beyond the edges of the Andromeda galaxy, researchers have identified the tiniest galaxy ever ...

This task is somewhat less challenging around the closest major galaxy to the Milky Way, Andromeda. Other dwarf galaxies have been spotted around Andromeda before, but these have been large and ...

A discovery made by a team led by researchers at the University of Michigan tugs at the seams of some key cosmic lessons we ...

This offers forensic clues as to how our Milky Way galaxy and Andromeda have evolved differently over billions of years. Our Milky Way has been relatively placid. But it looks like Andromeda has ...

Dozens of dwarf galaxies swarming around the Andromeda Galaxy like bees have been caught on camera by the Hubble Space Telescope, which took more than a thousand orbits of the Earth to take enough ...