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Magnetic field
Migration and Settlements
Mid Earth Orbit
Microwave
Modified Normalized Difference Water Index (MNDWI)
Microgravity Environment Research
Multispectral Imagery
Meteorological Data
Microplastics
Maximum allowable concentration
Maximum contaminant level (MCL)
Marsh
Meteorology
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Monitoring well
Microorganisms
Monopropellant Thruster
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Magnetic Torque Rods / Magnetorquers
Moderate Resolution Imaging Spectroradiometer (MODIS)
Microclimate
Multi-Source Weighted-Ensemble Precipitation
Marine Heatwave
Magnetorquers
Multi-Criteria Decision Making (MCDM)
MELiSSA (Micro-Ecological Life Support System Alternative)
Manning's formula
Manning's Roughness Coefficient
Maritime security
Multiple direction/polarisation radiometers
Microwave Humidity Sounder (MHS)
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Meadow degradation
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