Stars race around a black hole at the center of the Andromeda galaxy so fast that they could go the distance from Earth to the moon in six minutes. The finding, announced today, solves a mystery over ...

Someday, the Andromeda Galaxy will merge with our Milky Way – and it won’t be the first time Andromeda has swallowed up another galaxy and kept the stars for itself. The nearby Andromeda Galaxy, like ...

Dots show locations of stars in the spectroscopic survey superimposed on an image of the Andromeda galaxy (M31). Dots are color coded according to their velocity relative to the Milky Way, as measured ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Go into your backyard about 20:30 p.m. EST or thereabouts ...

A team of astronomer from the Indian Institute of Astrophysics (IIA) have discovered that some exploding stars, called novae, shine 10,000 times brighter than the Sun. Novae are big, bright explosions ...

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The Andromeda Galaxy is surrounded by a swarm of small satellite galaxies. Researchers have detected a stream of stars in one of the Andromeda Galaxy's outer satellite galaxies, a dwarf galaxy called ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. The Milky Way is our cosmic home, containing hundreds of billions of ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: X-ray: NASA/CXO/UMass/Z. Li & Q.D. Wang, ESA/XMM-Newton; Infrared: NASA/JPL-Caltech/WISE, ...

The large galaxies present in the current Universe weren't always so big. Evidence indicates that they were built up over time, largely by collisions with other galaxies. These collisions have left ...

"Even the most well ordered Andromeda stars are not as well ordered as the stars in the Milky Way's disk," Dorman said. In the currently favored "Lambda Cold Dark Matter" paradigm of structure ...

A pair of space telescopes is giving astronomers an unprecedented view of stellar birth and death in the Andromeda Galaxy, located about 2.5 million light-years away. The combined image was made using ...