Mars is the destination of choice for three Mars missions this summer, with the US, China and the United Arab Emirates all preparing for launch. Also, UAE plans for a Mars habitat, the UK engineer working on ways to return samples to Earth, the Mars Society's Lucinda Offer outlines plans for Martian settlements, Nicolas Booth talks landers, life, and rovers, and a review Spaceship Earth, the new movie about the 1990s Biosphere 2 experiment... Like this podcast? Please help us by supporting the Naked Scientists