This artist's depiction illustrates the four Magnetospheric Multiscale (MMS) spacecraft flying in a tetrahedral formation, superposed on a conceptual rendering of Earth's magnetosphere (not to scale). MMS measurements along the dayside boundary of the magnetosphere have yielded important new insights into the role of electrons in magnetic reconnection. MMS is measuring this explosive physical process as the Sun's and Earth's magnetic fields interact, converting stored magnetic energy into kinetic energy and heat. Image Credit: NASA/Goddard Space Flight Center Conceptual Image Lab
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