Arp 220 is one of the brightest infrared galaxies in the nearby universe, with intense star formation fueled by a collision ...

For decades, astronomers have cast galaxy mergers as the universe's ultimate relationship drama: two galaxies collide, chaos erupts, black holes awaken and star formation comes to a screeching halt.

Looking ahead: Future Euclid observations will enable scientists to watch how galaxy collisions spark bursts of star formation, fuel shrouded black holes, and unleash energetic feedback. According to ...

Add Yahoo as a preferred source to see more of our stories on Google. When galaxies collide, it's less like a train wreck and more like a marriage: Two separate entities merge into a single massive ...

Some massive black holes spend billions of years far from the centers of their galaxies. A new study says that these wandering black holes could preserve evidence of ancient galactic collisions. Most ...

Add Yahoo as a preferred source to see more of our stories on Google. This illustration shows a possible view from Earth of the early stages of a predicted merger billions of years from now between ...

A recently detected flash of energy appears to have emanated from the wreckage of colliding galaxies, according to an international team of astronomers led by Penn State scientists. The burst, known ...

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Whether or not galaxies merge depends on how strong the gravitational attraction is between the galaxies and whether the universe’s expansion is more powerful than gravity. Gravity affects everything ...

At a distance of 2.5 million light years from the Milky Way, it’s hard to believe that Andromeda is our closest neighbouring galaxy. But despite the huge distance between these two elliptical entities ...