Author and cosmologist Lawrence Krauss discusses dark energy with Jim Al-Khalili and why 'coming out' as an atheist is so controversial in the United States. Show more
Discover 11,128,835 listings and 278,124 playable programmes from the BBC
Author and cosmologist Lawrence Krauss discusses dark energy with Jim Al-Khalili and why 'coming out' as an atheist is so controversial in the United States. Show more