Cluster hits the magnetic bull's-eye

ESA's spacecraft constellation Cluster has hit the magnetic bull's-eye. The four spacecraft surrounded a region within which the Earth's magnetic field was spontaneously reconfiguring itself.

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<p><a href="http://www.physorg.com/news72446617.html">Cluster hits the magnetic bull's-eye</a></p> <p>ESA's spacecraft constellation Cluster has hit the magnetic bull's-eye. The four spacecraft surrounded a region within which the Earth's magnetic field was spontaneously reconfiguring itself.</p>