February 26th, 2015
Episode 169 of 1538 episodes
Public astronomer Dr Marek Kukula, of the Royal Observatory Greenwich, told John about the new discovery of a huge and ancient black hole. He said it has grown faster than current physics would suggest possible, in the early development of the universe. John Humphrys was surprised by the information from Dr Kukula that the black hole "is smaller than an atom" but "contains as much material as 12 thousand million stars, like the sun". "Oh lord, how can that be?!" John replied.