Space Launch System (Launch vehicle)

found: Work cat.: Space Launch Sytem highlights, September 2012, viewed July 31, 2017:page 1 (On Sept. 14, 2011, NASA announced heavy-lift rocket capable of sending spacecraft, including the agency's Orion multi-purpose crew vehicle, deep into space; SLS is a national capability and will be the largest rocket ever built)

found: NASA's Space Launch System will take astronauts and science experiments farther into space than ever before, 2015:title page (Space Launch System)

found: NASA, July 31, 2017:search: Space Launch System>Overview (NASA's Space Launch System, or SLS, is an advanced launch vehicle; SLS, the world's most powerful rocket, will launch astronauts in the agency's Orion spacecraft on missions to an asteroid and eventually to Mars)

found: United States. Congress. House. Committee on Science, Space, and Technology (2011). A review of NASA's space launch system, 2011:title page (NASA's Space Launch System)page 3 (heavy-lift launch system "Space Launch System") page 5 (Shuttle- and Constellation-derived launch system designated the Space Launch System and Multi-Purpose Crew Vehicle)