Jonathan was at the Cheltenham Science Festival 2019, where some of the brightest minds and communicators in science and technology came together to discuss an incredible array or topics and issues.

Caitriona McLeish, a Senior Fellow at SPRU at the University of Sussex and co-director of the Harvard Sussex Program on Chemical and Biological Weapons & Brett Edwards, security and policy specialist join Jonathan to discuss the history of chemical warfare and ask - are we doing enough to prevent chemical weapons falling into the wrong hands?

Kevin Fong, doctor and space scientist also joins Jonathan to discuss his podcast '13 Minutes to the Moon' - 50 years on from the Apollo 11 mission.