I just bought Entrenchment today and decided to play some of it, during my game I encounteredan enemy star base for the first time. My fleet was small and immediately escaped, but while doing so it looked like the base was MOVING...as in coming towards my ships. I'm not sure if it was just the camera or whatever, when I did build one of my own I wasn't able to move it...and it just sat there while my planet was attacked. (my guess is that they don't move and act like a super huge giant turret, but I still don't know...lol)

So was it just me, or can these things actually move like after an upgrade or whatever?