NASA preps launch of four satellites that will finally suss out the origins of Earth’s mysterious magnetic field

This coming March NASA will be launching the Magnetospheric Multiscale Nission (MMS), a effort ten years in the making which will hopefully answer some of the many outstanding questions we have about Earth's magnetic field. In particular, the mission will create the first detailed three-dimensional maps of a process known as magnetic reconnection -- the phenomenon we experience most directly as geomagnetic storms, solar flares, and even the aurora.



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