1.Does a gravitational field ever end for instance do we experience a gravitational force from a star light years away. 2.if there are two objects in space one 100kg and another 1kg.According to Newtons law of Universal Gravitation there will be an attractive force between these two objects. So my question is does the small object accelerate towards the bigger object or vice-versa.Or do they both accelerate at a distance between them? 3.where does gravity get the energy to move objects from? any help will be welcome thanks.