Nasa's outgoing head of science, Thomas Zurbuchen talks about saving the James Webb Space Telescope, future missions to the Moon and Mars, and research into UFOs. The team also visit the Science Museum's sci-fi exhibition and talk to its curator, Glyn Morgan, about Aliens, Star Trek and AI. Plus, the seeds that accompanied Shaun the Sheep on the Artemis 1 mission and what they mean for growing food on the Moon and Mars. Like this podcast? Please help us by supporting the Naked Scientists