Context:
Space Slinky: Jet of Superheated Gas -- 5,000 Light-Years Long -- Ejected from Supermassive Black Hole
Aug. 22, 2013— More than thirteen years of observations from NASA's Hubble Space Telescope have allowed astronomers to assemble time-lapse movies of a 5,000-light-year-long jet of superheated gas being ejected from a supermassive black hole in the center of the giant elliptical galaxy M87.
More:
http://www.sciencedaily.com/releases/2013/08/130822122530.htm