Leading scientists are tested over the social impact of their discoveries by philosopher Anthony Grayling and the public.
All episodes available (5 total)
There are no upcoming broadcasts of this programme
Thu 31 Dec 2009 01:32 GMT
BBC World Service Online
All previous episodes
See all from Exchanges At The Frontier
The eclipses, spacecraft and astronauts changing our view of the Universe
A pair of scientific sleuths answer your perplexing questions. Ask them anything!
Sign in to the BBC, or Register