Frustration with NASA at the slow start of work on a new heavy-lift launch vehicle ordered in last year’s three-year authorization act for the agency has united Democrats and Republicans who are otherwise at loggerheads over future federal spending. Engineers reviewing options for the heavy-lift Space Launch System (SLS) that would replace the canceled Ares V will make their final selection no sooner than “late June”—a slip from as early as “late spring”—and NASA has cut the amount ...


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