How is gravity different in space than on earth?
The effects of gravity (i.e. your weight) depend upon your proximity to a massive object. As you move away from the Earth, its gravitation affects you less (i.e. your weight decreases). If you were to move close to the Sun or Jupiter, your weight would increase beyond its Earthly value because both objects are more massive than Earth is. In deep space, you will generally weigh very little or nothing because of your distance from massive bodies.