Astronomers Are Baffled To Find That the Universe Is Expanding Too Fast; 'Not What We Expected' Astronomers routinely ...

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

"We thought they were basically all going to be fried because the entire universe turned into a vat of boiling oil." ...

"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 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, ...

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

From the lunar landing to the launch of the Hubble Space Telescope, here are some bold space missions in history.

Hubble’s latest image reveals the Small Magellanic Cloud (SMC), a nearby dwarf galaxy visible from Earth without a telescope.

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.

This is a wide-angle view of the distribution of known satellite galaxies orbiting the large Andromeda galaxy (M31), located 2.5 million light-years away. The Hubble Space Telescope was used to ...

"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 ...