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

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

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 ...

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 ...

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

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

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

Fewer than a dozen recurrent novas have been identified in our galaxy — more are known beyond the Milky Way, most of them in the Andromeda Galaxy (M31), with four in the Large Magellanic Cloud ...

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