The SLS is now projected to cost $4 .1 billion per flight. Because of that severe cost it is projected to only fly once per year. This can not form the basis of a sustainable Moon colonization plan. But suppose we could make the SLS reusable? It’s already known the side boosters can be made reusa
Reusable Space Program - KSP Fan Works - Kerbal Space Program Forums
Onward & Upward: Q&A with Pratt & Whitney Rocketdyne's Jim Maser
Ultimate Steve's Content - Kerbal Space Program Forums
KerbalX - Fully Reusable Space Shuttle STV Block 2 SSTO
Fan-designed Lego Space Shuttle Stacks Up to Saturn V Rocket Set
Steam Workshop::NASA - STS - Space Shuttle Atlantis
Lunar Lander for SLS - Science & Spaceflight - Kerbal Space Program Forums
JNSQ: Shuttle Launch System - Epilogue - KSP1 Mission Reports - Kerbal Space Program Forums
IFA Archives
Kerbal Space Program - KSP - The Story of the World's Most Interesting Spaceflight Simulator — Christopher Roosen
Isn't the SLS obsolete, considering the future belongs to reusable rockets like those made by SpaceX and Blue? - Quora
Therapist: Steam Locomotive Space Shuttle isn't real. It can't hurt you. Steam Locomotive Space Shuttle: : r/KerbalSpaceProgram
