| A mosaic of the extreme ultraviolet images from STEREO's SECCHI/Extreme Ultraviolet Imaging Telescope aboard the "A" observatory 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 Å), 1.5 million C (195 Å), 60,000-80,000 C (304 Å), and 2.5 million C (286 Å). For additional details and to download high-resolution versions of this and other data images, please visit the STEREO Science Center, managed by NASA Goddard Space Flight Center, at http://stereo.gsfc.nasa.gov/gallery/gallery.shtml.Credit: NASA/NRL To save photo: |

