I counted six landing platforms extending out from the walls or on pylons, fanned out to allow access from above. The light was inadequate, which suggested the light we had in the tunnel was an emergency backup system. The hatchway must be up in the ceiling somewhere, probably not unlike the one for the terraforming construction access, except maybe nicer and not made by the lowest bidder. But ScoutDrone2 couldn’t see the upper part of the chamber without going up there, and I wanted it to stay where it was in the tunnel entrance. If anything in this chamber came rushing out toward us, it would be nice to know what was coming our way.