Barry Jenakunsさんのイラストまとめ

Why yes; that is a SLS lox tank dry lab; thank you for asking. There are 39 launches just for refuelling lox/ch4/xenon. 2 MW nuclear reactor. 3000m^2 of radiators. 12km/s of ∆V, conservatively. Can go anywhere in inner solar system; Jupiter at a stretch.