Stephan's Quintet, a group of five galaxies first discovered nearly 150 years ago, became the stage for this extraordinary event. The galaxy NGC 7318b barrelled through the quintet, reactivating a ...

"We were surprised by the streams of light that were visible near the center of the galaxies, as nothing similar has been ...

This pair of interacting galaxies is listed as number 148 in Arp’s catalog of peculiar galaxies. NGC 6052, found in the constellation Hercules and located around 230 million light-years from Earth, is ...

A supermassive black hole that doesn't appear to be where we would expect seems to be travelling at more than a thousand kilometres per second – the result of a giant cosmic collision ...

However, we now know that NGC 6052 actually consists of two galaxies that are in the process of colliding. A lot of very interesting things happen when galaxies collide, not least of which is the ...

Experts have observed two pairs of black holes on the verge of colliding for the very first ... of large black holes seen within merging dwarf galaxies. The event unfolded in two dwarf galaxies ...

"Deployment of NASA's SPHEREx Observatory complete," SpaceX announced less than an hour after launch, "beginning the telescope's two-year mission to collect data on more than 450 million galaxies ...