Hello there! My space station has been in planning for a long time and I will soon get to building it. One of it's features will be an advanced refueling system (converting kethane into fuel and using that fuel to refuel) and for that I need a Kethane mining program. I am not an expert at this game, but I'm not a noob either. So this is what I have in mind: 1. Kethane mining vessel able to land, take off and randezvous in low Minmus orbit This vessel would land on Minmus, mine Kethane to full capacity and then take off to randezvous with Kethane carrier in low orbit (it would also refuel there to be able to land again and take off later) 2.Kethane carrier It would store all the Kethane delivered by mining vessel and then fly to the space station to transfer the fuel there, refuel and go back to Minmus orbit. 3.The station I'm not sure about the station yet. I would prefer it to be in Kerbin's orbit. All the conversion will be done here. That's it. Please tell me what do you think about this. Would it be efficient? Is it possible to make vessel capable of constantly travelling back between Kerbin and Minmus?