MCSB meaning in Space Science ?

Answer: What is Modular Common Spacecraft Bus mean?

The Modular Common Spacecraft Bus (MCSB) is a fast-development, low-cost, general purpose spacecraft platform. Its modular design is intended to reduce the cost, complexity, and lead time on missions by providing a reliable, well-characterized system that can carry a variety of payloads. According to NASA, "the spacecraft is roughly one tenth the price of a conventional uncrewed mission and could be used to land on the Moon, orbit Earth, or rendezvous with near-Earth objects."

reference

Full Form	Category
Mathematical Computational and Systems Biology	Academic & Science
Molecular Cellular and Structural Biology	Academic & Science
Marion County Savings Bank	Banking
Mercer County State Bank	Banking
Merrimack County Savings Bank	Banking
Mills County State Bank	Banking
Michigan Celebrates Small Business	Business
Monroe City School Board	Community
Mega Cab Short Bed	General
Motor Carriers Service Bureau	General
Master Composter/Soil Builder	General
Maine Coast Solar Bares	General
Marine Cryptologic Support Battalion	General
Modular Common Spacecraft Bus	Space Science