M-Class

M-Class refers to a category of spacecraft or space missions that are designed for medium to high-performance capabilities. The term is particularly associated with the classification of solar and stellar activity, specifically in the context of solar flares. M-Class flares are medium-sized solar flares that can have significant effects on the Earth’s magnetosphere and can cause disturbances in radio communications and power systems. In other contexts, M-Class may also denote a classification system for various types of vehicles or equipment, indicating a certain level of capability or specifications.