So this week i was trying to do a Munar Space Station, and today I docked the last module, the one who will bring my kerbonauts down on the Mun and back. So the docking went pretty good, even if the Space Station was rotating on herself. Then i prepared one of the kerbonauts in the lander and undock it from the station, so i burned retrograde until the orbit was good enough to land. So u know i landed but, even if in the station i have a module for the refueling, i went out of oxidizer and after 10 seconds my engine just died and left me alone 15km high