Here ya go Alex ...
"A decade of studying the Earth's magnetic shield, in 3-D"
http://www.physorg.com/news202454522.html
"Today (September 1), space scientists around the world are celebrating ten years of ground-breaking discoveries by 'Cluster', a mission that is illuminating the mysteries of the magnetosphere, the northern lights and the solar wind."
...
"PEACE measures electrons and electric currents in the solar wind, magnetosphere and aurora. During Cluster's mission PEACE has been used to study huge bubbles of plasma three times the size of Earth jetting through the magnetosphere, very thin sheets of electric current flowing through space where explosive magnetic reconnection occurs, and grand waves on the edge of the magnetosphere, formed by the solar wind 'blowing' over the surface before breaking and forming tornado-like vortices. "
10 years of collecting data, eh ? That's a pretty fair-sized investment into investigating plasma flows in Earth's neighbourhood.
Cheers