There was a recent episode of BBC radio's In Our Time covering dark matter, which was useful to someone uninitiated like me: http://www.bbc.co.uk/programmes/b0

There was a recent episode of BBC radio's In Our Time covering dark matter, which was useful to someone uninitiated like me: http://www.bbc.co.uk/programmes/b054t3s2 http://www.bbc.co.uk/programmes/b054t3s2