galaxies

Researchers Spot Massive Black Hole In Double 'Burp'

The cosmic sinkhole is at the center of a galaxy 800 million light-years from Earth and supports the theory that such objects can switch their power output on and off in relatively short time-scales.

When 2 Black Holes Dance, Space Quivers

Just as two kids jumping on a trampoline around each other send waves rippling outwards on the fabric, black holes distort space as they orbit around each other, says astrophysicist Marcelo Gleiser.