NASA Internal Briefing: ESD Integration: Budget Availability Scenarios, August 19, 2011
This document covers four budgetary and Congressional scenarios whereby NASA would build the Space Launch System (SLS).
NASA Sees Testing SLS In 2017 for $18B, Aviation Week
“Early cost estimates for the heavy-lift Space Launch System (SLS) that Congress has ordered NASA to build indicate the agency believes it can test an unmanned version of the “core” vehicle selected by Administrator Charles Bolden for about $18 billion by the end of 2017.”
