04.30.12 – Whether it's a giant solar flare or a beautiful green-blue aurora, just about everything interesting in space weather happens due to a phenomenon called magnetic reconnection. Reconnection occurs when magnetic field lines cross and create a burst of energy. These bursts can be so energetic they could be measured in megatons of TNT. To study this phenomenon, NASA is readying a fleet of four identical spacecraft, the Magnetospheric Multiscale (MMS) mission, for a planned launch in 2014.
At NASA's Goddard Space Flight Center in Greenbelt, Md., a team of scientists and engineers are working on a crucial element of the MMS instrument suite: the Fast Plasma Instrument (FPI). Some 100 times faster than any previous similar instrument, the FPI will collect a full sky map of data at the rate of 30 times per second -- a necessary speed given that MMS will only travel through the reconnection site for under a second.
— MMS Mission
— MMS Mission
