If you haven’t discovered it yet, The Guardian’s Science Weekly is a gem of British science journalism.  Fun and free, it is presented by The Guardian’s Alok Jha and a new podcast is released every Monday.  This week it is my turn to be interviewed. I talked about the biggest questions in the Universe, to tie-in with my latest book. Part of the interview concentrated on why we may need a new theory of gravity.

You can listen to the podcast here.