关于这张图
NASA image release September 29, 2011 This image of the distant active galaxy Markarian 509 was taken in April 2007 with the Hubble Space Telescope's Wide Field Camera 2. To read more go to: <a href="http://www.nasa.gov/mission_pages/hubble/science/turbulent-black-hole.html" rel="nofollow">www.nasa.gov/mission_pages/hubble/science/turbulent-black...</a> Credit: NASA, ESA, G. Kriss (STScI), and J. de Plaa (SRON Netherlands Institute for Space Research); Acknowledgment: B. Peterson (Ohio State University) <b><a href="http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html" r…
