text: Exclusive: Rules Set for  #36;50 Million 'America's Space Prize' (SPACE.com) SPACE.com - Anyone who \  wants to follow in the shoes of Burt Rutan and win the next big space prize \  will have to build a spacecraft capable of taking a crew of no fewer than five \  people to an altitude of 400 kilometers and complete two orbits of the Earth \  at that altitude. Then they have to repeat that accomplishment within 60 days.