from the waiting-for-the-vogons dept.
gihan_ripper writes "Researchers from San Diego are using supercomputers to accurately predict the shape of the Sun's corona, based on magnetic field data from the photosphere. It is hoped that this model will enable us to predict Coronal Mass Ejections. When CMEs reach the Earth, they produce geomagnetic storms and can wreak havoc with communcations, GPS, and power networks. In the decade or so, the researchers hope to be able to predict CME collisions with the Earth and determine their impact."