Another interesting idea for SLS replacement / evolution is to move the top half (ICPS + Orion) on top of a Starship. Instead of the normal Starship upper stage its just the tank section (think SN5). It is expended but Super Heavy is reused. pic.twitter.com/gL5biUzTRk

— Ken Kirtland IV (@KenKirtland17) March 4, 2022