A colleague and I randomly started on this subject, and, not being very good at anything science / physics related we were stumped at how this might work. So the question is:

If I park my space ship in space ... such that it is as close to being as perfectly still as possible ... can it manoeuvre freely with some sort of propulsion system?

We are under the assumption that, in order to move - there needs to be something to move against .. which we are assuming is absent in space.

_{(Cue laughs from you all here...)}

A colleague and I randomly started on this subject, and, not being very good at anything science / physics related we were stumped at how this might work. So the question is:

If I park my space ship in space, such that it is as close to being as perfectly still as possible, can it maneuver freely with some sort of propulsion system?

We are under the assumption that, in order to move there needs to be something to move against, which we are assuming is absent in space.