MER meaning in Space Science ?

Answer:

What is Mars Exploration Rover mean?

NASA's Mars Exploration Rover (MER) mission was a robotic space mission involving two Mars rovers, Spirit and Opportunity, exploring the planet Mars. It began in 2003 with the launch of the two rovers to explore the Martian surface and geology; both landed on Mars at separate locations in January 2004. Both rovers far outlived their planned missions of 90 Martian solar days: MER-A Spirit was active until March 22, 2010, while MER-B Opportunity was active until June 10, 2018.

reference

Full Form	Category
Materials And Electrochemical Research	Academic & Science
Managing Electronic Records	Academic & Science
Materials Electrochemical Research	Academic & Science
Managing Electronic	Academic & Science
Micro-economic Reform	Accounts and Finance
Merced (ca)	Airport Code
Magnetize, Energize, Recognize	Business
Mears Group	Business
Management Efficiency Rating	Business
Mechanical Engineer Of Record	Business
Media Efficiency Ratio	Community
Message Error Rate	Computer and Networking
Minimum Error Rate	Computing
Module Error	Computing
Mobile Equipment Event Reporting	Computing
Mean Explicit Rate	Computing
Multichassis Ethernet Router	Computing
Mobile Edge Router	Computing
Mercurial Finance	Cryptocurrency
Macro Editor Resident Area (wordperfect Library)	File Type
Milieu Effecten Rapport	General
Mary Elles Rats	General
Mutually Exclusive Relationship	General
Modulation Error Ratio	General
Mars Exploration Rovers	General
Monitoring Evaluation and Reporting	General
Mental and Emotional Release®	General
Mars Exploration Rover—and	General
Mental Emotional Release	General
monoclonal Eleanor Roosevelt	General
Maximum Effective Range	General
Middle Eastern Respiratory	General
Monthly Effluent Report	General
Methyl Excision Repair	General
Mutual Evaluation Report	General
Medicaid Estate Recovery	General
Maine Equipment Room	General
Marine Environmental Response	Governmental
Monthly Energy Review	Governmental
Maintenance Energy Requirement	Governmental
Mobil Economy Run	Governmental
METPANJRA	Indian Railway Station
Medical Education Resources	Medical
Medical Evidence of Record	Medical
Medical Examination Report	Medical
Minimum Engagement Range	Military and Defence
Manpower Estimate Report	Military and Defence
Maintenance Evaluation Report	Military and Defence
Castle Air Force Base, Merced, California USA (now closed)	Regional
Mission Evaluation Room	Space Science
Mars Exploration Rover	Space Science
Meridian	Space Science
Management Expense Ratio	Stock Exchange
Month End Restructure	Stock Exchange