• The best observed X-class flare

    On March 29, 2014 the sun released an X-class flare. It was observed by NASA's Interface Region Imaging Spectrograph, or IRIS; NASA's Solar Dynamics Observatory, or SDO; NASA's Reuven Ramaty High Energy Solar Spectroscopic Imager, or RHESSI; the Japanese Aer

  • Launch of IRIS solar mission rescheduled to June 27, 2013

    The launch of NASA's Interface Region Imaging Spectrograph (IRIS) mission is being delayed to June 27, 2013 from Vandenberg Air Force Base in California. Live NASA Television launch coverage begins at 13:00 UTC (6 p.m. PDT). 

    Because of a

  • IRIS: The science of NASA's newest solar explorer

    In late June 2013, the Interface Region Imaging Spectrograph, or IRIS, will launch from Vandenberg Air Force Base, California. IRIS will tease out the rules governing the lowest layers of the solar atmosphere — historically some of the hardest to untangle. Known as