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Originally posted by some_stupid_name
well close but instead of weight you should call it mass. in space weight (as in 50 pounds) can't really be measured by a scale, but it's mass can be measured and with that you could figure out it's weight. the more mass you can squeeze into an area of space the more gravity it will have. i think gravity and mass are interchangeable in equations. also the speed at which you move through space has an effect on time relative to an outside observer.