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Aurora Image from Arrival of Combine CMEs
Aurora Image from Arrival of Combine CMEs

A widespread display of auroras erupted late Friday and into Saturday, August 5 and 6, when the August 3, 2011 double-CME hit Earth's magnetic field and sparked a G4-category geomagnetic storm. Auroras were visible in the continental U.S. in Utah, Nebraska and Colorado and in Europe as far south as England, Germany and Poland.

This image was taken by Scott Lowther in Thatcher, Utah on August 6, 2011. "The auroras were just barely visible to the naked eye here in Utah as a pink glowing dome on the northern horizon. But my camera, a Nikon D5000, was able to make out structure." said Scott. These faint red lights are typical of lower-latitude auroras during major geomagnetic storms.

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Page Last Updated: January 15th, 2014
Page Editor: NASA Administrator