The following account was recorded in the agent's log during your transmission: Rocks are tumbling slowly through a massive, transparent, rotating cylinder like...a kilometer-long washing machine or something. Umm, the air's really humid in here and smells like fresh earth after a rainstorm. Water's periodically gushing in from the ends of the cylinder, flooding the interior with a foamy, brown torrent that somehow gets sucked out of the cylinder's surface without making any holes in it. Outside, the sunlight's casting a slow-moving grid of shadows through the cylinder's textured surface, kinda like watching a tree's branches sway through a skylight.