n-SUPERMASSIVE-large570A NASA spacecraft has spotted strange light shifts near the heart of a supermassive black hole that could help scientists better understand the inner workings of these monstrous objects. The agency’s Nuclear Spectroscopic Telescope Arrayprobe, or NuSTAR, looked on as a mysterious X-ray source, called a corona, moved closer to a supermassive black hole. The black hole’s immense gravity pulled harder on the corona the closer it came, stretching and blurring the X-ray light in the process, researchers said.  “The corona recently collapsed in toward the black hole, with the result that the black hole’s intense gravity pulled all the light down onto its surrounding disk, where material is spiraling inward,” study lead author Michael Parker, of the Institute of Astronomy in Cambridge, England, said in a statement.  NuSTAR’s observations provide the most detailed look yet at such events, researchers said. While light cannot escape once it passes the “event horizon” of a black hole, high-energy emissions do stream from the vicinity of these objects — from the corona, for example, and from the superhot disk of material spiraling into a black hole’s maw. MORE