10.26.10 "NASA's Chandra X-ray Observatory has observed an unusual galaxy cluster that contains a bright core of relatively cool gas surrounding a quasar called 3C 186. This is the most distant such object yet observed, and could provide insight into the triggering of quasars and the growth of galaxy clusters."
I've made an argument about what wording they use about their discoveries, I haven't claimed that quote to match the currently announced one. It's just their latest news item on the page.