NASA Will Compete Space Launch System Boosters

By Frank Morring, Jr. morring@aviationweek.com .
WASHINGTON .

NASA has selected a shuttle-derived vehicle with two existing liquid-oxygen/liquid-hydrogen stages as its reference design for the heavy-lift Space Launch System that Congress has ordered it to build for exploration missions beyond low Earth orbit, but it will hold a competition between liquid- and solid-fuel boosters to get it off the pad.

Administrator Charles Bolden on Wednesday endorsed ...

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