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

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

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 ...

In the case of the Milky Way, it appears that the gas for star formation petered out on its own; however, for the smaller galaxies around Andromeda, it appears they were "killed" by their parent ...

"It was actually a total surprise to find the satellites in that configuration and we still don’t fully understand why they appear that way." ...

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 animation begins with a view of the neighboring Andromeda galaxy. We zoom through a scattering of foreground stars and enter the inky blackness of intergalactic space. We cross 2.5 million ...

This is supported by other recent Hubble observations that imaged 100 million stars in the Andromeda galaxy. This merger could have contributed to making the environment around Andromeda more ...

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.

Yet it continues the trend of M31 satellites whose star formation shut off much later in the game. The authors stress that ...

The discovery of the dwarf galaxy Andromeda XXXV --located roughly 3 million light-years away and the smallest yet found in the Andromeda system -- is forcing astronomers to rethink how galaxies ...