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"  NASA today unveiled the first images taken of the lowest layers of the sun&amp;#039;s atmosphere by the IRIS (Interface Region Imaging Spectrograph) spacecraft, revealing a &amp;quot;multitude of thin, fiber-like structures.&amp;quot; Using a combination ultraviolet telescope and spectrograph, the 7 by 12-foot IRIS has been able to peer into the sun&amp;#039;s interface region, the boundary between the surface and the scorching-hot corona that surrounds it, and pick out previously unseen small features, even ones only 150 miles across. NASA says the images show vast temperature and density differences throughout the region, and that the energy transfer in the interface region may power the sun&amp;#039;s million-degree atmosphere and drive solar winds that reach throughout the solar system. IRIS&amp;#039;s ultraviolet telescope takes a new image every 5 to 10 seconds, and NASA says the images, paired with 3-D numerical modeling, will grant scientists insight into how energy and heat travel through the interface region by providing temperature, velocity and density information. As more images come in from IRIS, a more complete picture of the sun&amp;#039;s surface will emerge.  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/space/a9269/a-new-look-deep-inside-the-sun-15731883/>