| http://www.w3.org/ns/prov#value | - spacecraft, as well as a launch vehicle for them.The prototype is expected to be finished next year and test flights are to start in 2008, according to Virgin.Tickets for the first flights, which could start in 2009-2010, are expected to cost about 200,000 dollars, and some 40,000 people have already signed up, the company said in December.Source: Yahoo News----------------------------------------
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