I have dreams with similar scenery, spaceships. aliens and other planets et cetera. They aren't always out to get me, in fact I'm often the alien myself.

P.S. Look at this: http://meaningofdreams.org/Dream_Arc...ershippage.htm

The green box at the bottom shows my dreams with the mothership in them, and what it was doing. Looks like I haven't seen Catface in quite a while now.