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

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

The spiral galaxy 2MASX J23453268−0449256 is located nearly 1 billion light-years away from Earth, and measures about three ...

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 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 ...

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

Contrary to what current models predict, this dwarf galaxy survived the extreme conditions ... most information about these galaxies came from the satellites of the Milky Way. The discovery of ...

However, our own Milky Way is on a path to collide with its giant neighbor, the Andromeda Galaxy. The next galactic merger of roughly 250 billion stars moving through space at high speed will change ...

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 ...

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