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Image: This visualization shows how a coronal mass ejection (CME) affects the Earth's magnetic field 94.5 hours after leaving the Sun. Stored energy and magnetic flux increase substantially in the planetary magnetic field; these effects can lead to power grid and satellite failures. The image is a snapshot from the first simulation to follow the Sun-to-Earth path of a CME, an event in which the star's outer atmosphere throws out a chunk of itself. Colors represent the electric current density. Solid lines trace the inner (red) and outer (green) boundary of the magnetic field, as defined by closed magnetic field lines. The simulation runs faster than real time, showing promise for better CME forecasts. Research: Tamas Gombosi, Darren De Zeeuw, Clinton Groth, Ken Powell, Quentin Stout, University of Michigan. Visualization: Darren De Zeeuw.
Authorizing NASA Official: James R. Fischer, ESS Project Manager
Editor and Web Curator: Jarrett S. Cohen, jarrett.cohen@gsfc.nasa.gov
Last Modified: August 31, 2000