OG meaning in Space Science ?

Answer:

What is Zero Gravity mean?

Weightlessness is the complete or near-complete absence of the sensation of weight. This is also termed zero-G, although the more correct term is "zero G-force". It occurs in the absence of any contact forces upon objects including the human body.

Weight is a measurement of the force on an object at rest in a relatively strong gravitational field (such as on the surface of the Earth). These weight-sensations originate from contact with supporting floors, seats, beds, scales, and the like. A sensation of weight is also produced, even when the gravitational field is zero, when contact forces act upon and overcome a body's inertia by mechanical, non-gravitational forces- such as in a centrifuge, a rotating space station, or within an accelerating vehicle.

When the gravitational field is non-uniform, a body in free fall experiences tidal effects and is not stress-free. Near a black hole, such tidal effects can be very strong. In the case of the Earth, the effects are minor, especially on objects of relatively small dimensions (such as the human body or a spacecraft) and the overall sensation of weightlessness in these cases is preserved. This condition is known as microgravity, and it prevails in orbiting spacecraft.

reference

Full Form	Category
Organicly Grown	Academic & Science
Oganesson	Academic & Science
Oxford Graduate	Academic & Science
Original Gravity	Academic & Science
Organic Gardening	Academic & Science
Ogden Corporation	Business
Operating Grant	Business
Oriental Grill	Business
Opera Ghost	Community
The Ornithology Group	Community
Olympian Gods	Community
One God	Community
Official Gazette	Community
Old Gorgeous	Community
Oldies Guru	Community
Original Guild	Community
Original Gamer	Computing
Odyssey Gaming	Computing
Orange Grove	Country Specific
OG Fan Token	Cryptocurrency
Oracle Graphics	Database Management
Original Gum	General
Organized General	General
Ocean Grown	General
Olive Green	General
Old Glory	General
Operations Group	General
Offensive Guard	General
Open Graph	General
Original Generations	General
Original Girls	General
Olympic Games	General
Obvious Greed	General
Optimized for GPU	General
Original Givers	General
Overall Gas	General
Olive Garden	General
Original Geek	General
Ohne Gentechnik	General
Old Growth	General
Oval Geniuses	General
Old Geezer	General
Otaku Gangsta	General
Old Guyor	General
Ole Grey	General
Old Gold	General
Order Of Gownsmen	General
Over Gold	General
Oh God	General
Ookie Globals	General
Orton Gillingham	General
Old Girls	General
Official Guide	General
Orienation Group	General
Original Gansta	General
Original Gimmick	General
Operation Girafarig	General
Online Gaming	General
Original Glutton	General
Over Grow	General
Original Gangstsa	General
Old Git	General
Orange Gatorade	General
Old Gang	General
Original Garch	General
Octavius Gilchrist	General
Organically Grown	General
OutGoing	Governmental
Operational Guideline(s)	Governmental
Old Government	Governmental
Obergeschoss	International
Old Gangster	Jobs
Old Girl	Jobs
Original Gangster	Jobs
Original Gangsta	Jobs
Old Guy	Jobs
Organ Grinder	Jobs
Observational Game	Maths
Optimal Guess	Maths
Orientation Group	Physics Related
Original German	Regional
Output Grammar	Softwares
Outer Gimbal (roll)	Space Science
Oxygen Gage	Space Science
Zero Gravity	Space Science
Original Golfer	Sports
Own Goal	Sports