The five-segment booster is intended to power the early flight phase of Nasa's proposed Ares 1 launch vehicle - its replacement for the space shuttle.

BBC: Test ignition for 'Moon rocket'

The agreement that I signed says that NASA withdraws their objection to my flight and will give me limited access to the American segment of ISS in exchange for certain waivers that I was willing to agree to.

CNN: Web exclusive: Preflight interview with Tito