Fra ‘makro’ til ‘mikro’ – virvler observert av Cluster   Artist's impression of the micro vortices observed in the Northern magnetic cusp by Cluster. It is the first time ever that such phenomenon is observed in space.   Magnetic turbulence are mainly created where the solar wind - a constant flow of charged pareticles generated by the Sun - can directly access the magnetosphere, the natural magnetic shield that surrounds and protects our planet. Cluster is studying these phenomena in 3D. Release date: 10 August 2005