MMS, launched in 2015, uses four identical spacecraft flying in a pyramid formation to take a three-dimensional look at the magnetic environment around Earth.
MMS, sum varð send upp í 2015, brúkar fýra eins rúmdarfør, sum flúgva í pyramiduskapi fyri at fáa eitt trídimensionalt útsýni av umhvørvinum rundan um jørðina.