Space Boffins Sue Nelson and Richard Hollingham prepare for Tim Peake's launch to the International Space Station by speaking to Britain's first astronaut - Helen Sharman. ESA's Dr Volker Damann, Head of the Space Medicine Office, explains why space is bad for you and studio guests - rocket expert David Wade and space journalist Sarah Cruddas - share insights on the size of entrepreneurs' rockets and the future of Space 2.0. Like this podcast? Please help us by supporting the Naked Scientists