Following the death of Professor Stephen Hawking, here is another chance to hear his 2016 BBC Reith Lectures on black holes. For many of us black holes are pretty mind-boggling - the stuff of science fiction nightmares. But Stephen Hawking said - rather than see them as menacing and destructive, we should try to understand them…. and thereby unlock the secrets of the Universe.

Image: Stephen Hawking, Credit: Reuters Show less