United States Senator Bill Nelson (Democrat of Florida), flanked by U.S. Senators Kay Bailey Hutchison (Republican of Texas), left, John Boozeman (Republican of Arkansas), U.S. Representative Chaka Fattah (Democrat of Pennsylvania), and NASA Administrator Charles Bolden, right, speaks about the design of a new Space Launch System during a press conference, Wednesday, September 14, 2011, at the Dirksen Senate Office Building on Capitol Hill in Washington. The new system will take the agency's astronauts farther into space than ever before, create high-quality jobs here at home, and provide the cornerstone for America's future human space exploration efforts. .Mandatory Credit: Paul E. Alers / NASA via CNP