If you thought airships like the Zeppelin were a thing of the past and consigned to the history books for their dangerous ability to burst into flames, then think again because NASA is looking at using them to explore Mars and Venus.

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This episode’s shirt was the Penny Dot Lane in Black and Grey by Madcap England and is available from http://www.atomretro.com/madcap_england with worldwide shipping from here in the UK. There is a 10% discount if you use the code DROID10 at the checkout

Presented by Paul Shillito
Written & Researched By Andy Munzer
Additional Material by Paul Shillito
Footage & Images NASA, ESA, IKI CNES, GOSH, TSR, D Edmondson
Music by Mike Mullen www.positrosmic.com