Congressional language directing NASA to pick a single commercial crew vehicle to back during development threatens to boost the cost of commercial crew operations if it is adopted, according to a member of the presidential panel that recommended using commercial vehicles to transport U.S. astronauts to low Earth orbit. Jeff Greason, president of XCOR Aerospace and a member of the panel on human spaceflight headed by former Lockheed Martin CEO Norman Augustine, argued May 17 that maximum ...


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