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Currently, NASA uses a modified C-9 plane tocreate simulations of a weightless environment, both fortraining purposes and to conduct weightlessness experiments(without the enormous costs of space travel). Today, a companycalled Zero Gravity Corporation (ZERO-G) offers thisexperience to the general public.
Subsequently, one may also ask, how do you simulate zero gravity?
Aboard our specially modified Boeing 727, G-FORCE ONE,weightlessness is achieved by doing aerobatic maneuvers known asparabolas. Specially trained pilots perform these aerobaticmaneuvers which are not simulated in any way.ZERO-G's passengers experience trueweightlessness.
Similarly, does NASA have a zero gravity room?
One of them, NASA Glenn's Zero GravityResearch Facility, is the largest of its kind in the United States.The Zero Gravity Research Facility was built during thespace race era of the 1960s to support research and development ofspace flight components and fluid systems in a weightlessenvironment.
There is no such thing as a "Zero GravityChamber". The microgravity environment is simulated usingaircraft that fly in parabolic arcs. By putting the aircraft intofree fall, the occupants can briefly float around inside theairplane, like they would inside a spacecraft inorbit.