Hmmm, I have clicked the reprocess button on the science lab and refinery a bunch of times. How much power is needed (sorry if that is in the descriptions, I don't have Kerbal running)? Right now, since the reactor shut down, I am only getting power from 8 big solar panels and a bunch of batteries. Do the UF4 tank, refinery, science lab, reactor, etc. all have to be connected directly, or is it OK to have them connected via docking ports and scaffolding? Basically, I have one of those six-sided joints with docking ports and scaffolding holding one module with the science lab, reactor, and generator together with another module that has a big fuel tank, the refinery, and a UF4 tank. There are also some other random modules with batteries, the solar panels, etc.