NASA and Capitol Hill are in showdown mode over the heavy-lift Space Launch System (SLS) that Congress wants flying by 2016. Agency managers are working with outside consultants to find a way to cover the cost of developing a new government-owned human-rated rocket, while impatient lawmakers are pressing for a faster start to the project and looking to trim the NASA budget at the same time. Details of the program to build the heavy-lift SLS were due on Capitol Hill Jan. 9, but ...


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