X-ray source around the patient, and simultaneously rotates a set of electronic receptors on the opposite side.

ECONOMIST: Chopping wood

Besides revealing clues about the lost galaxy, the black hole itself, called HLX-1 (Hyper-Luminous X-ray source 1), is scientifically interesting, researchers said.

MSN: Rare Black Hole Survives Galaxy's Destruction

"It's correlating the increasing intensity in different bands that provides really important clues about the structure of the source, " Prof Madejski - a co-investigator on the NuStar X-ray telescope, told BBC News.

BBC: Blazar Markarian 421's flare-up is cosmic coincidence