Solar System Chatter

Black Hole Sponge

NASA Goddard and NASA/CXC/SAO/E. Bulbul, et al
NASA Goddard and NASA/CXC/SAO/E. Bulbul, et al
Despite hosting a supermassive black hole, the Perseus galaxy cluster is surprisingly calm. Japan’s Hitomi X-ray spacecraft revealed that the cluster’s hot gas moves slowly, and must be efficiently absorbing the black hole’s energy. Extra-galactic turbulence is a challenging variable; the calm will enable scientists to calculate the cluster’s mass more accurately.

Heather Goss is the Departments Editor at Air & Space.

More From This Author »