NASA released Friday a draft request for proposals (RFP) for its Commercial Crew Transportation Capability (CCtCap) contract, the second phase of a two-phased procurement strategy to develop a commercial crew space transportation capability to get astronauts to, and from, the International Space Station (ISS) by 2017. Space Exploration Technologies Corp. (SpaceX), Boeing [BA], Sierra Nevada Corp. (SNC) and Blue Origin are participating in NASA’s Commercial Crew Program (CCP). SpaceX is adapting its Dragon cargo capsule for manned missions while SNC…