It's episode 30 and in this milestone edition Jo's special guest is the person who was with her for episode 1 - TV presenter and writer Dallas Campbell, who talks to Jo about animals that have gone into space, including dogs, a cat and tortoises.
Jo also learns about the incredible, microscopic tardigrades, with Professor Adam Hart, Dr Jamie Gallagher and Will Gater.
Presented, produced & edited by Jo Durrant.
Music licensed from Purple Planet.
