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Commercialising space: pioneers explain how they hope to capitalise on the cosmos in our second programme from the Future in Review technology conference in California.

Presenter Ed Butler speaks to Chris Lewicki, chairman of Planetary Resources, about his company's plans to mine asteroids. We hear from the head of robotics at Moon Express, Dr Michael Sims, about the business opportunities offered by the Moon.

Aerospace consultant Patti Grace Smith explains how the diplomatic row between Russia and the US over Ukraine is damaging collaboration on the International Space Station.

And Nasa consultant Larry Smarr tells Ed about the inevitable role that autonomous robots will play in future space exploration.