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Originally Posted by djsFlames
Such as this sudden existence of gravity in space to have bomb dropping ships?
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Everything has gravity, and gravity is everywhere, its just very week and diffuse as you move away from any large body. You will never stop falling towards the earth at ~9m/s2. It's just that your rate of acceleration away or your distance from the earth could become so great that the earths pull does not have the focused force needed to pull you back in before you are captured by the gravity of something else, at which point part of the cumulative acting on you and that object will still be the Earth, just likely not strong enough to have any real impact.
Assuming a 8KM long ship weights what 1 or 2 Dozen billion KGs? the bombs would probably fall towards it accelerating at a couple mm/second squared. If everything was aligned correcting in that system you could probably have the planet and star exert much more force on the bombs. Assuming this was your attack plan was to very slowly drop bombs in space you would probably pick an angle where the planet and star are pulling properly, since your in a completely 3 dimensional theater.
The better question is how much force are those ships exerting to seemingly float above a single point on that planet and would it not be more efficient for them to enter an orbit using angular momentum to stay above that planet.
That said, lets not go to deep on the physics of a story that builds a loss set of mechanical laws around finite high powered lasers, non existence of time dilation, a hazy a best view of cosmic distances, telekinetics, ESP....