It's the 100th episode of the award-winning podcast, that is the space for arts and science. In this special feature length extended episode Jo welcomes back a host of guests, and topics discussed include myth busting, sensory science, illustration, history, microbiology, the Periodic Table, science fiction films and space.

Guests featured: Professor Adam Hart, Dr Emma Yhnell, James Mayhew, Dr Jamie Gallagher, Dr Daisy Dunn, Dr Helen Fry, Dr Jonny Brooks-Bartlett, FC, Dr Jessica Barker, Will Gater, Sue Nelson, Professor Barry Smith, Briony Hudson, Owen Gower, Professor Jo Verran, Findlay Napier, Megan Henwood, Jeff Downes and Graham O'Dwyer.

Presented, produced & edited by Jo Durrant.

Music licensed from Purple Planet.