VANDENBERG AIR FORCE BASE, Calif. – At Vandenberg Air Force Base in California, the Orbital Sciences Corp. Pegasus XL rocket is being prepared to launch the Interface Region Imaging Spectrograph, or IRIS, spacecraft. IRIS will open a new window of discovery by tracing the flow of energy and plasma through the chromospheres and transition region into the sun’s corona using spectrometry and imaging. IRIS fills a crucial gap in our ability to advance studies of the sun-to-Earth connection by tracing the flow of energy and plasma through the foundation of the corona and the region around the sun known as the heliosphere. For more information, visit http:__iris.gsfc.nasa.gov. Photo credit: NASA_Cory Huston
Photographer NASA_Cory Huston
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