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Volcano's Eruption Creates Colorful U.S. Sunsets - Yahoo! News

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Description: Many people in the United States and Europe are seeing gorgeous lavender sunsets lately thanks to the eruption more than two weeks ago of Russia's Sarychev Peak volcano.

The volcano blew its top June 12, generating a remarkable shock wave in the atmosphere seen in a photo taken by astronauts. It also hurled massive plumes of sulfur dioxide into the air, and that material has been circling the globe.

Deep purple hues and ripples of white characterize the spectacular views the past few evenings.

The phenomenon occurs when the ash and fine particles sprayed high into the atmosphere by the volcano scatter light. The sulfur dioxide ejected by Sarychev Peak interacts with the atmosphere to form tiny particles called sulfate aerosols.

Original URL: http://news.yahoo.com/s/livescience/20090701/sc_livescience/volcanoseruptioncreatescolorfulussunsets

http://news.yahoo.com/s/livescience/20090701/sc_livescience/volcanoseruptioncreatescolorfulussunsets

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