zero-g
Astronaut's floating condition
Zero-g is short for zero gravity—the condition of apparent weightlessness experienced in orbit or freefall.
Astronauts float in zero-g because they're falling at the same rate as their spacecraft.
The term appears in discussions of space travel, physics, and specialized environments: zero-g training, zero-g experiments.
Also written zero-G.
Extremely weak gravitational force
- orbitCurved celestial path
- ISSOrbiting multinational research facility
- spacewalkVenturing outside a spacecraft
- cosmonautRussian orbital traveler
astronaut · spacesuit · spacecraft · docking · EVA · extravehicular · shuttle · Soyuz
Extremely weak gravitational force
- freefallUnimpeded downward motion
- weightlessnessAbsence of apparent mass
- orbital mechanicsScience of celestial motion
- inertiaResistance to altered motion
momentum · centripetal force · Newton's laws · acceleration · mass · equilibrium · reference frame · terminal velocity
Staying atop liquid
- driftingMoving without purpose
- weightlessnessAbsence of apparent mass
- levitationUnsupported aerial suspension
- suspensionTemporary halt or exclusion
buoyancy · hovering · gliding · airborne · disorientation · vertigo · nausea · motion sickness
Shrinkage from disuse
- bone density lossDecreased mineral content in skeleton
- vestibular systemSensory apparatus for spatial orientation
- motion sicknessNausea from perceived movement
- disorientationLoss of spatial awareness
puffy face · countermeasures · proprioception · inner ear · edema
microgravity
Extremely weak gravitational force
- orbitCurved celestial path
- ISSOrbiting multinational research facility
- spacewalkVenturing outside a spacecraft
cosmonaut · astronaut · spacesuit · spacecraft · docking · EVA · extravehicular · shuttle · Soyuz · Apollo
microgravity
Extremely weak gravitational force
- freefallUnimpeded downward motion
- weightlessnessAbsence of apparent mass
- orbital mechanicsScience of celestial motion
inertia · momentum · centripetal force · Newton's laws · acceleration · mass · equilibrium · reference frame · terminal velocity · ballistic
floating
Staying atop liquid
- driftingMoving without purpose
- weightlessnessAbsence of apparent mass
- levitationUnsupported aerial suspension
suspension · buoyancy · hovering · gliding · airborne · disorientation · vertigo · nausea · motion sickness · spatial awareness
muscle atrophy
Shrinkage from disuse
- bone density lossDecreased mineral content in skeleton
- vestibular systemSensory apparatus for spatial orientation
- motion sicknessNausea from perceived movement
disorientation · puffy face · countermeasures · proprioception · inner ear · edema
- spacespace, sun, moon, stars, star
- gravitygravity, graviton, gravity well, gravitational pull, gravity wave
- Floatingfloat, floating, afloat, hover, hovering
- Anti-Gravityweightlessness, levitation, floating, hover, hoverboard
- weightlessnessmicrogravity, weightless, weightlessness, floating, free fall
- defying gravitylevitation, floating, weightlessness, hover, freefall
zero-ghypergravity
Gravitational force exceeding Earth-normal
gravitational pull · weight · surface gravity · heaviness · gravitational force
zero-gheaviness
State of being weighty
earthbound · grounded · leaden · weighted down · terrestrial
- below zeroTemperature beneath freezing
- zero-tolerance policiesAutomatic penalties without discretion
- ground zeroExplosion's central impact point
- zero inFocus with precision
- zero tolerancePolicy allowing no infractions
- zero gravityAbsence of apparent weight