NASA Television provided live launch coverage of the Interface Region Imaging Spectrograph, or IRIS mission on June 26, from Vandenberg Air Force Base in California.
IRIS is a NASA Small Explorer Mission to observe the characteristics of solar material as it moves through the little-understood interface region between the sun's photosphere and corona that powers the sun's million-degree atmosphere and drives the solar wind.
IRIS was air-launched on an Orbital Sciences Corporation Pegasus rocket.
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