Topia!: Society: Military: Aviation: Aircraft: Experimental: Space Launch Initiative (3) NASA whittles down field of new launch vehicle concepts - The Space Launch Initiative (SLI), a NASA-wide effort defining the future of human space flight, has completed its first milestone review -- resulting in a narrower field of potential candidates for the nation's second-generation reusable space transportation system. NASA abandons single-stage-to-orbit shuttle replacement - Second-generation orbital vehicles will have a two-stage-to-orbit propulsion system based on engines fueled by all kerosene, all hydrogen or a combination of kerosene and hydrogen. NASA Whittles SLI Concepts To 15 - Seeking a safer and cheaper path to space, a team of NASA officials and contractors said Tuesday they will pursue 15 concepts ranked the most promising among hundreds of proposals. Additional categories: lower back support bra Taylor Made gift wrap unique groomsmen gifts instant loans

Space Launch Initiative