(Credit: Serenity Strull/ Getty Images) Many stars in our galaxy exist in pairs, but our Sun is a notable exception. Now scientists are finding clues that it may once have had a companion of its own.

Andromeda is the closest large galaxy to the Milky Way. And it is getting closer, as the two will merge in several billion ...

Astronomers have spotted a pair of galaxies in the act of merging, and current observations point towards the creation of a monster galaxy, according to a report in Science Daily. Monster galaxies ...

The lab released a new image of two galaxies merging, which teases the fate of ... of the ultimate fate that awaits our own Milky Way galaxy. The image was captured using the NOIRLabs ...

Supermassive black holes have a mass a million times that of our Sun or larger. Scientists like us study them to understand ... Sometimes, they collide with other galaxies, which can lead to the ...