Stepping up the pace of the commercial space race. The UK government believes a British spaceport would have firms lining up to use it for commercial spaceflights, satellite launches or delivery of cargo to space. So it wants to build a spaceport in the next four years. That's even though no firm has yet proven its spaceplane can carry passengers. David Parker, CEO of the UK Space Agency, was at the announcement at the Farnborough Airshow.