2.2.4 spase://SMWG/Observatory/MMS MMS 2019-05-05T12:34:56Z The Magnetospheric Multiscale (MMS) mission is a Solar Terrestrial Probes Program mission within NASA's Heliophysics Division. The MMS mission, consisting of four identically instrumented spacecraft, will use Earth's magnetosphere as a laboratory to study magnetic reconnection. spase://SMWG/Person/James.L.Burch PrincipalInvestigator Mission web page https://mms.gsfc.nasa.gov/ Mission web page Earth.Magnetosphere