On this tutorial it says to make 1 spere and then make 1 more by duplication. Then the 2nd sphere should be 1 unit larger on all axis' than the original. Then you are supposed to link the newer, bigger one to the smaller original one. And it says you need to go back and edit the first one's materials. I can't figure out how to get back to my first sphere since the new one is bigger and on top of the original. The tutorial is http://www.digitalblasphemy.com/tutorial/planet/textures.shtml . Any help would be very appreciated.