Zero Gravity ("zero-G" or "microgravity") refers to the condition of near weightlessness that occurs when an object is in orbit around the Earth or another celestial body.
In zero gravity, the gravitational force exerted by the central body is counteracted by the object's orbital motion, resulting in a state of near weightlessness.
Zero gravity is an important consideration in the design and operation of spacecraft and other aerospace vehicles. It can have a number of effects on the behavior of materials and systems, and it requires special measures to ensure the safety and well-being of crew members and other passengers
Zero gravity is also used for a variety of research and development purposes, such as studying the effects of microgravity on materials and biological systems, and testing the performance of aerospace technologies in simulated zero-G environments.
Overall, zero gravity is an important concept in the aerospace industry, and it plays a role in a wide range of aerospace applications.