A Hole Lot of ... Whatever

" 'At the hearts of most large galaxies, including our own Milky Way, lies a supermassive black hole weighing millions of times the sun's mass,' said Michael Koss ... [of] NASA's Goddard Space Flight Center in Greenbelt, Md., and the University of Maryland in College Park (UMCP). 'Some of them radiate billions of times as much energy as the sun.' " Koss' study found a nearby galaxy with two black holes (story and short video): http://www.nasa.gov/mission_pages/swift/bursts/monster-black-holes.html