PB meaning in Space Science ?

Answer:

What is Push Button mean?

A push-button (also spelled pushbutton) or simply button is a simple switch mechanism to control some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed. Buttons are most often biased switches, although many un-biased buttons (due to their physical nature) still require a spring to return to their un-pushed state.Terms for the "pushing" of a button include pressing, depressing, mashing, slapping, hitting, and punching.

reference

Full Form	Category
Peter Bartram	Academic & Science
Pull Box (fire alarm)	Academic & Science
paper-back [book]	Academic & Science
Planing Board	Academic & Science
Primed Blaster	Academic & Science
Proccessor Board	Academic & Science
Packet Buffer	Academic & Science
Partition Balancing	Academic & Science
Plant Biomass	Academic & Science
Pilot Balloon	Academic & Science
Politeknik Brunei (Brunei Polytechnic)	Academic & Science
Private Bank	Accounts and Finance
Previous Balance	Accounts and Finance
Planters Bank	Banking
Porzellanfabrick Burggrub	Business
Power Bore	Business
Personal Banking	Business
Pitney Bowes	Business
Practical Business	Business
Paper Based	Business
Performance Barn	Business
Private Banking	Business
Powerful Blower	Business
Paul's Boutique	Business
Price to Book Value Ratio (Price/Book value)	Business
Packard Bell	Business
Playboy	Business
PanAmerican Beverages, S. A.	Business
Lead	Chemistry
Plumbum (lead)	Chemistry
Property of Being	Chemistry
Prominent Bum	Community
Page Break	Community
Played By	Community
PaperBack	Community
Poo Bear	Community
Prayer Beast	Community
Productive Burb	Community
Padington Bear	Community
Phillip Barrow	Community
Peregoy and Boyle	Community
Pooh Bear	Community
Post Baccalaureate	Community
Power Bottom	Community
Page Briefing	Community
Publications Board	Community
Personal Base	Computer and Networking
Predicted and Bi-directional	Computer and Networking
Protection Bit	Computer Assembly Language
Performance Benchmark	Computing
Power Book	Computing
Panic Button	Computing
Power Bank	Computing
Paraiba, Brazil	Country Specific
PIggyBankDAO	Cryptocurrency
Prosodic Boundary	Earth Science
Primary Basin	Earth Science
Power Booster	Electronics
Printed Board	Electronics
Plabase	Electronics
Fax (faxability Plus)	File Type
Phonebook (winfax Pro)	File Type
Proboard Configuration Files	File Type
Pixbase Setup File	File Type
Purr Box	General
Puggy Bunny	General
Peanut Butter	General
Possum Bub	General
Photon Blast	General
Peter Boy	General
Polymer Based	General
Plackett?urman	General
Puck Bunny	General
Princess Bill	General
Patrol Boat	General
Plate Block	General
Pocket Beagle	General
Push Back	General
Princess Beatrix	General
Protracted Block	General
Polished Brass	General
Performance Button	General
Palm Beach	General
Penetrating B	General
Pont Brûlé	General
Public Bathroom	General
Perceived Bitterness	General
Phosphate buffer	General
Picture Book	General
Phebus Burst	General
Projects BHCS	General
Pint bags	General
Philly Boys	General
Power Ball	General
Participatory Budgeting	General
Princess Bubblegum	General
Perceived Benefits	General
Priscilla Babe	General
Paul Bailey	General
Partial body	General
Pacific Boozin	General
Pretty Baby	General
Precious Baby	General
Pale Blue	General
Pure Bred	General
Patrol Bomber	General
Pineapple Bacon	General
Poor Backup	General
Productive Burp	General
Palm Beach, California	Governmental
Patriot's Baby	Governmental
Plenty Bigoted	Governmental
Parliamentary Broadcast	Governmental
Puckish Barrister	Governmental
Piggy Back	Governmental
Pacific Beach	Governmental
Planning Branch	Governmental
Pro Bono	Governmental
President's Budget	Governmental
Planning Board	Governmental
Phillipsburgh	Governmental
Project Bucharest	Governmental
PUNTAMBA	Indian Railway Station
Punjab	Indian State
der PatschBeauftragter	International
Portuguese Brazilian	International
Posting Board	Internet
Poor Baby	Internet
Pushy Broad	Jobs
Punk Buster	Jobs
Playboy Bunny	Jobs
Poisson Brackets	Maths
Petabyte	Measurement Unit
Polar Bear	Medical
Phenobarbital	Medical
Polymerase Basic	Medical
Posted By	Messaging
Prominent Blogger	Messaging
Papa Bull	Messaging
Pushy Broads	Messaging
Personal Box	Messaging
Property Book	Military and Defence
Particle Beam	Military and Defence
Peace Building	Military and Defence
Pipelined Burst	Networking
Property Bivalence	Physics Related
Plackett Burman	Physics Related
Primary Beam	Physics Related
Parabolic Barrier	Physics Related
Pismo Beach	Regional
Public Beta	Softwares
Pocket Basic	Softwares
Project Builder	Softwares
Phonetically Balanced	Space Science
Pre-burner	Space Science
Push Button	Space Science
Playback	Space Science
Pass Back	Sports
Personal Best	Sports
Polar Ball	Sports
Players Book	Sports
Passed Ball	Sports
Physio Ball	Sports
Passed Balls	Sports
Perspective Broker	Stock Exchange
Prime Broker	Stock Exchange
Puntamba Junction	Transport & Travel