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Web Exclusive | June 2013

NASA's solar satellite to be launched on June 26

National Aeronautics and Space Administration (NASA) is preparing to launch its next scientific satellite this June that will provide the most detailed look ever at the Sun's lower atmosphere or interface region. The Interface Region Imageing Spectrograph (IRIS) mission, which is scheduled for launch on June 26, will observe how solar material moves, gathers energy, and heats up as it travels through this largely unexplored region of the solar atmosphere.

The interface region, located between the Sun's visible surface and upper atmosphere, is where most of the Sun's ultraviolet emission is generated. These emissions impact the near-Earth space environment and Earth's climate. The IRIS spacecraft was designed and built by Lockheed Martin's Advanced Technology Center in Palo Alto, Calif. It will launch aboard a Pegasus XL rocket deployed by an Orbital Sciences L-1011 aircraft from Vandenberg Air Force Base on the central California coast.

IRIS carries an ultraviolet telescope that feeds a multi-channel imageing spectrograph. The satellite is the first mission designed to use an ultraviolet telescope to obtain high-resolution images and spectra every few seconds and provide observations of areas as small as 150 miles across the Sun.

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