One not to miss! Tom McLeish is featured at 21.00 on Wednesday this week, talking with Philip Ball, on Science Stories, Radio 4: The Medieval Bishop’s Big Bang Theory. Tom and Philip explore the scientific world of Robert Grosseteste, rainbows, colour and light streaming through Cathedral windows, and the birth of the cosmos described in his treatise ‘On Light’ with its eerie resonance of modern thinking. Listen in, or to the podcast afterwards!