Black Holes and the Dark Side of the Moon

Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs. In today’s programme: Scientists test out a new universal flu vaccine that fights all flus and last for several years. And why Pink Floyd’s Dark Side of the Moon might hold the melodic key to the ultimate night's sleep.Plus, what are black holes and what would happen if you were to fall into one?!