The detection may help answer how black holes and galaxies evolve together.

Add Yahoo as a preferred source to see more of our stories on Google. This jet streaming out of a supermassive black hole is traveling at nearly the speed of light. Superman may fly faster than a ...

In Hubble pictures taken just months apart of V838 Monocerotis, the dust ring around this star grows by several light-years during that time, called a “light echo.” How can something grow by 5 ...

Even if they were dozens of light-years away, two colliding neutron stars could create a powerful enough explosion to wipe out life on Earth. At least, that’s according to a recent paper published in ...

Mars is apparently not the only planet on our radar capable of sustaining life. UK researchers have confirmed the existence of a “super-Earth” located 20 light-years away that could reveal the ...