Wouldn't a ship that size completely mess up earth's orbit
I'm not an astrophysicist or anything but I've seen stuff on TV about how earth's orbit and the orbit of the moon are in a delicate balance that makes conditions for life on earth possible. So since we know the mothership in this movie is large enough to have a pretty serious gravitational effect, wouldn't that change the earth's center of gravity and mess everything up? Like throw us into a different orbit and permanently screw up our climate and maybe bring the moon crashing down on us?
I know the movie has lots of problems but it seems like this would've at least been a new avenue for massive planetary destruction which of course is Roland Emmerich's favorite thing.