For more, see http://space.newscientist.com/article/dn13090 This animation begins with a close-up of the supermassive black hole in the centre of the galaxy 3C321. Hot gas falls towards the black hole; some is swallowed but much is ejected in a particle beam. As the camera pans out, the companion galaxy becomes visible as it swings into the path of the jet, which is deflected in the process (Courtesy of NASA/STScI/G Bacon)
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