National Aeronautics and Space Administration

Goddard Space Flight Center

Sun-Earth Day 2010: Ancient Mysteries, Future Discoveries

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STEREO: The Entire Sun STEREO: Comet McNaught STEREO: Illustration STEREO: Concept STEREO: Extreme Ultraviolet STEREO: Coronagraph Plasma Rain Hovenweep National Monument Arcing Active Region Ancient Mystery: Abu Simbel Magnetic Structures August 1st Coronal Mass Ejection The view from Easter Island

NASA Fact

The March 13, 1989 Quebec blackout, the result of a major geomagnetic storm, caused a $6 billion loss to the Canadian economy.