Tech Tent 9: Techy Teens

Is to cool to be a techy kid? And how the private sector wants to cash in on Space. Also, how a wave of new Chinese talent could change Silicon Valley start-up culture. Presented by Rory Cellan-Jones,from the UK's Big Bang Fair in Birmingham, with special guests former Shuttle astronaut Jon McBride and astronomer Maggie Lieu, and Carolyn Rice and Jane Wakefield from the BBC Online technology desk