Nemesis or Cybertron?

going through the boards here i've noticed many references to Nemesis when talking about the scenes with Starscream and The Fallen after Megatron flies into space. Is that really supposed to be Nemesis?
i thought it was Cybertron myself because before being inside the Fallen's chamber, we see an outside shot that shows damaged versions of those spiral towers that popped up in Prime's little light show to Sam in the first movie.
do the prequel comics or novelizations refer to it as Nemesis, is that why so many are saying that? because it just looked like a damaged version of the Cybertron we saw in the first movie to me.
i thought it was Cybertron myself because before being inside the Fallen's chamber, we see an outside shot that shows damaged versions of those spiral towers that popped up in Prime's little light show to Sam in the first movie.
do the prequel comics or novelizations refer to it as Nemesis, is that why so many are saying that? because it just looked like a damaged version of the Cybertron we saw in the first movie to me.