30 years after becoming the first Briton in space, Helen sits down with Christer Fuglesang, the first Swedish astronaut. The two pioneers discuss their experiences in space, how humans will live on Mars, the potential threats we face from space, and what the future of space exploration may look like in the year 2050. Zero Pressure is a podcast from Imperial College London and Saab. A relaxed conversation with those on the cutting edge of science and technology - hosted by Britain's first astronaut Helen Sharman - Presented by Imperial College London and Saab.  The Zero Pressure podcast series will be looking at how science and technology can positively contribute to solving complex, interrelated global challenges of today and tomorrow. We will be looking at pioneering technologies and speaking those on the thinking edge.