The concept of Zero Gravity was born out of the NASA space program to deal with the problems of large compression forces felt by Astronauts as they launch into space. Astronauts were plagued with fatigue during the launch process because of Gravity's natural compression on the human body, most notably the human spine. read more
zero gravity in Science zero gravity The condition of real or apparent weightlessness occurring when any gravitational forces acting on a body meet with no resistance so the body is allowed to accelerate freely. read more
Zero gravity mean that the object is no longer influenced the gravitational pull of the earth which implies that the object must be located very far away from the earth. The explanation above is for the literal meaning of zero gravity. Zero gravity also means "weightlessness". read more