oh!, a update. i did not know they were real fields. that has happend before but you could not build on them. and I thought i only had a few fields and would build on last field and not have room for next outpost. in ogame it takes a lot to get your fields up. in moon i think you get 3 with each upgrade. and when you colonize sometimes it takes 4 or 5 times to get a (keeper) good planet.
ok so i guess i dont have to build anymore outpost base upgrades.