Celebrating 55 years since humans first set foot on the Moon with Project Apollo, in this podcast extra, Dr Jen meets with Benoit Faiveley and Mario Freese, founder and chief engineer of Sanctuary on the Moon, a daring project to leave a legacy of humanity on our nearest celestial neighbour. In the late 2020s, 24 coaster-sized sapphire disks will sail to the Moon as part of NASA's Artemis CLPS program. Engraved upon them will be the essence of humanity. One hundred billion pixels depicting the human genome, the work of masters, and the every day - one pixel for every human that ever lived. It is an exploration of ourselves, our world, and our epoch.

Produced by Ralph, Paul, Jen, John, Damien & Dustin