Of all the ideas Janna Levin presents, the most provocative and disturbing, perhaps, is her doubt that there is free will in human existence at all. She cannot be sure that we are not utterly determined by brilliant principles of physics and biology. Yet she cleaves more fiercely in the face of this belief to the reality of her love of her children and her hopes and dreams for them.
Reporting back from this year's World Science Festival: how artificial intelligence will help us deal with the unsolvable and yes even the certain.
Janna Levin launches a new film about Alan Turing at the World Science Festival.
Comments from two cosmologists and NASA's images from a refurbished Hubble.