NASA yesterday on the 29th published a survey in which they claimed the detection of many new stellar objects. The press release continues to say this includes super-massive black holes 2/3 of which were previously undiscovered. This is a lot more mass than we previously knew existed. What are the effects of this on dark matter? http://phys.org/news/2012-08-wise-survey-uncovers-millions-black.html EDIT The location of these black holes is unclear. I have (perhaps naively) ignored the new galaxies since dark matter is concentrated in a halo around a galaxy and thus should not be affected, but what is the location of the black holes?