Rendezvous in lunar orbit...

A resupply ship from earth arrives with provisions for the moonbase (the glowing X way down there on the surface- below center).

The craft labeled "2" carries cargo containers, while the solar panelled canister is an independent science station orbiting the moon.

Astronauts use individual rocket packs to maneuver. (From the art of Don Dixon as pictured in National Geographic's Man's Conquest of Space, 1973).