As the only monolithic spacecraft moon landing plan in the world currently, the design of the Dawn Spaceship largely remains consistent with that of the Apollo Spacecraft half a century ago.
In front of the Dawn Spaceship's command module is the "Full Moon" lander, attached to the docking port of the command module with its bottom fixed port.
That is to say, just like the Apollo Spacecraft, when astronauts need to land on the Moon, the lander must first separate, then rotate 180 degrees to dock again with the command module before the astronauts can climb into the lander.
The rationale for this procedure is that if the ascent stage of the lander were to dock with the command module at ground launch, the docking port wouldn't be capable of meeting safety standards for load-bearing capacity and overall structural strength. It requires bottom fixation with explosive bolts and then separation once in lunar orbit.
