NASA has been announcing new plans for lunar exploration in the last few months, with the goal of building an inhabited base on the Moon. But there are countless tasks, big and small, that will need to be carried out for the construction and maintenance of a lunar base. NASA recently sent out a solicitation for proposals to help fill the gaps, citing the need for vertical solar arrays, radioisotope thermal generators, in-situ resource utilization, in-space advanced manufacturing, and innovative nanomaterials.
https://www.universetoday.com/articles/nasa-is-calling-on-industry-to-build-its-lunar-infrastructure
Elon's SpaceX Starship:
SpaceX Starship upper stage fin installment.
Projected reuses for the upper stage is 25 times, 40+ times for the booster.
#WAI video screenshot.