Is time travel possible? What does a black hole actually do to light? What does ‘galactic cannibalism’ mean?

Honour de Pledge speaks to Geraint Lewis and Luke Barnes, authors of ‘A Fortunate Universe: Life in a Finely Tuned Cosmos’ and ‘The Cosmic Revolutionary’s Handbook: (Or: How to Beat the Big Bang)’ about a tiny, simple, easily explainable topic...how the universe works!

This episode is supported by the Cambridge University Press Bookshop.

Music by Coby O’Brien
Produced by Rebekah King

To find out more about the Festival, please visit: https://www.festival.cam.ac.uk/