... This page contains pictures and text to accompany the press release entitled "some black holes are pink", which was presented as part of the Fresh Science event, ScienceNow! ... I first show colour pictures of the pink black holes (and of some blue and yellow ones for comparison. ... If you are having this trouble, I've included pictures below with stretched colour maps, to emphasise the colours: these should print better. (jpeg image, 29kb) . ... Quasar (black hole) PKS 1133-172. ...