Life isn't covered up with masses of objects, masses of possessions». (howard-hodgkin.com)
The founders estimate that printing parts in space could reduce the structural mass of objects by at least 30 percent, because the objects would not need to survive Earth's gravity or the extreme G - forces of launching into orbit aboard a rocket. (scientificamerican.com)
According to the equivalence principle, the gravitational mass of an object, which determines the strength of gravity's pull, is the same as its inertial mass, which determines how much an object accelerates when given a push (SN: 10/17/15, p. 16). (sciencenews.org)