Dr Tim GregoryDistinguished Nuclear Chemist, Broadcaster, and Authority on Planetary Science

Dr Tim Gregory is a prominent chemical analyst at the National Nuclear Laboratory in Sellafield, where he conducts precise isotopic and chemical measurements of nuclear materials. His scientific journey began with a PhD at the University of Bristol focused on the foundations of the Solar System, followed by a tenure as a postdoctoral researcher at the British Geological Survey. His academic rigor was further enhanced by a prestigious internship at NASA’s Johnson Space Center in Houston, where he researched the history of water-rich asteroids. Beyond the laboratory, Tim is a prolific communicator and author. His debut literary work, Meteorite, chronicles the celestial history of our planet, while his subsequent book, Going Nuclear, examines the vital role of atomic energy in addressing modern global challenges. He gained national recognition as a finalist on the BBC Two programme Astronauts: Do You Have What It Takes?, and frequently contributes to The Sky at Night, BBC Breakfast, and Radio 4 to discuss breakthroughs in space and energy. An engaging speaker, Tim possesses a rare ability to translate complex atomic and planetary concepts into compelling narratives for a wide range of audiences. He is frequently booked for his deep technical expertise and his enthusiastic approach to exploring the essential role of science and nuclear energy in securing a sustainable future. On stage, Dr Tim Gregory is best known for talks on Nuclear Science, Planetary Science and Nuclear Energy. Audiences leave with a clear, practical view of the subject rather than a generic overview — every keynote is shaped around the brief and the room. Their work resonates with leaders across Education and Science & Research, where the themes translate directly into team decisions, customer experience and growth strategy. Dr Tim Gregory is regularly booked for Presenter & Awards Host and Conference Speaker, adapting tone, length and format to suit the event — from a 20-minute opener to a full conference keynote with Q&A. Based in UK, Dr Tim Gregory travels internationally for engagements. To check availability or request a tailored brief for your event, send an enquiry and we'll come back with fees, dates and a short summary of how Dr Tim Gregory would approach your audience.