This slide is a bit confusing to me. The mobile lab is attached on top of the command and resource modules combo. The combo are for crews to fly to and return from moon. None of them are going to land on the moon surface. The mobile lab seems not able to land on itself, so there must be another lander module for it. The lander is not in this slide. For safety reasons the crew will land on moon surface separately from any cargo including the lab. The lab will land on top of another lander. There is no reason to dock them together in any orbit regardless how they get into lunar orbit.The slide below shows the design of a very large lunar rover, or a roving laboratory. In the illustration on the right, it can be seen mounted at the very top. You can see two of the wheels sticking out, as well as what appear to be three forward facing windows. The roving lab is completely enclosed and can support multiple astronauts on a multi-day mission across the lunar terrain.