We have something of a cosmology special for you this week...
Neil Turok, chair of mathematical physics at Cambridge University, explains the anthropic principle and his take on the multiverse theory.
Also in the show, Bobbie Johnson speaks with one of the pioneers of the internet, Vint Cerf, to find out about his latest plan: to take the web into space. We hear again from Sam Turvey, conservation biologist at the Zoological Society of London, about the possible sighting of the extinct Yangtze river dolphin. And we discuss mighty mice; the stomata effect on climate change; and the science of the new and entirely genuine Spider-Man suit.
We're also after your ideas for units of measurement that we can use for future science reports, and the history of debunked scientific theories.
