1.6K views · 72 reactions | America's premier rocket engine test complex, NASA's John C. Stennis Space Center (SSC) in Mississippi, flight-certified the engines for all #Apollo & space shuttle flights. SSC is now testing the #RS25 engines for the NASA's Space Launch System deep space exploration! Explore more SSC work in #NTRS! > https://go.nasa.gov/2Li3AWq | NASA Scientific and Technical Information (STI) Program | Facebook