Ever wondered how science becomes fiction? Join Sherlock and Doctor Who writer Steven Moffat and These Days author Lucy Caldwell in conversation with physics professor Rob Appleby as they discuss Collision: Stories From the Science of CERN, a unique collaboration pairing a team of authors with physicists at CERN, the European Organisation for Nuclear Research. From the possibilities of interstellar travel using quantum tunnelling to first contact with antimatter aliens, the trio talk about exploring these scientific steps through fiction and essays.