Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, the Milky Way’s mass is about 1.5 trillion solar masses, and the beefiest ...

The Andromeda galaxy, our cosmic neighbor, is far more turbulent than previously thought. A new survey by the Hubble Space Telescope has mapped the chaotic history of Andromeda’s dwarf galaxy system, ...

Related: The Andromeda Galaxy glows rosy red in gorgeous new Hubble ... These data provided Weisz and his team the first ...

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

A map showing the Andromeda galaxy and its satellites. The newly discovered Andromeda XXXV companion galaxy is highlighted in bold red text. | Credit: M. Arias et al. Astrophys. J. Lett. (2025) To ...

A discovery made by a team led by researchers at the University of Michigan tugs at the seams of some key cosmic lessons we thought we had learned from our own galaxy.

Astronomers at the University of Michigan have discovered a new satellite of the Andromeda Galaxy (M31), the Milky Way’s closest major galactic neighbor, and it has broken the record for the ...

"Everything scattered in the Andromeda system is very asymmetric and perturbed. It does appear that something significant happened not too long ago," Weisz said. "Our work has shown that low-mass ...

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 ...

A map showing the Andromeda galaxy and its satellites. The newly discovered Andromeda XXXV companion galaxy is highlighted in bold red text. (Image credit: M. Arias et al. Astrophys. J. Lett ...

Related: The Andromeda Galaxy glows rosy red in gorgeous new Hubble Telescope image Starting in late 2019, Hubble spent two years cataloging images — as well as measurements of the locations and ...