Astronomers have weighed the biggest known black hole in the Universe. The monster celestial object is 18 billion times more massive than our own Sun, says a team from Finland - six times larger than the previous record. http://news.bbc.co.uk/1/hi/sci/tech/7181877.stm
I like the idea that they have only just found something so massive. It makes you wonder if even larger SM-BH's are out there?