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Last updated on April 20, 2014 at 21:20 EDT
STEREO Sends Back First Solar Images
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STEREO Sends Back First Solar Images

January 9, 2007
A mosaic of the extreme ultraviolet images from STEREO's SECCHI/Extreme Ultraviolet Imaging Telescope taken on Dec. 4, 2006. These false color images show the sun's atmospheres at a range of different temperatures. Clockwise from top left: 1 million degrees C (171 Ã…), 1.5 million C (195 Ã…), 60,000-80,000 (304 Ã…), and 2.5 million C (286 Ã…).