The Guardian group carries a feature called Science Weekly which regularly includes a podcast on science.

In the latest podcast in the series, the presenter has packed in a lot of stuff. There is a part on the science fiction exhibition at The British Library. There is a studio discussion with astronomer and author Stuart Clark on his novel The Sky’s Dark Labyrinth. The book is said to explore the early days of astronomy through the lives of Johannes Kepler and Galileo.

Here’s where you can access the podcast – Science Weekly