NASA Logo, National Aeronautics and Space Administration

Trace mission, sun imagery

Interface Region Imaging Spectrograph (IRIS) fills a crucial gap in our ability to advance Sun-Earth connection studies by tracing the flow of energy and plasma into the corona and heliosphere for which no suitable observations exist. IRIS obtains high, resolution UV spectra and images of the sun's chromosphere, specifically on the non-thermal energy that creates the Corona and the Solar Wind; i.e., Space Weather. IRIS is a Principal Investigator (PI) led Small Explorer Mission; PI is Alan Title located at Lockheed Martin Advanced Technology Center, Solar and Astrophysics Laboratory.

IRIS will obtain UV spectra and images with high resolution in space (1/3 arcsec) and time (1s) focused on the chromosphere and transition region of the Sun, a complex dynamic interface region between the photosphere and corona. In this region, all but a few percent of the non-radiative energy leaving the Sun is converted into heat and radiation. Here, magnetic field and plasma exert comparable forces, resulting in a complex, dynamic region whose understanding remains a challenge.

In the News

05.06.15IRIS Celebrates 10,000th Orbit
10.16.14IRIS Helps Explain Heating of Solar Atmosphere
10.01.14Sounding Rocket Launches Successfully - Six Minutes to Study…
09.17.14NASA Releases IRIS Footage of X-class Flare
08.14.14NASA Scientist to Discuss “The Moody Sun” at Library of…
06.27.14NASA's IRIS Solar Observatory After 1 Year in Space
05.30.14NASA's IRIS Observes its First Gigantic Solar Eruption
02.21.14NASA's IRIS Spots Its Largest Solar Flare
12.09.13IRIS Provides Unprecedented Images of Sun
11.05.13NASA's IRIS Mission Data Now Publicly Available

> Go to Newsroom

Interface Region Imaging Spectrograph (IRIS) fills a crucial gap in NASA's ability to advance Sun-Earth connection studies

Mission Status

Launched June 27, 2013 10:27pm EDT
Mission Phase E: Operations

IRIS Data is Public as of
October 31, 2013.
+ view data

Related Links

Connect with IRIS Mission

Check out IRIS on Facebook IRIS YouTube videos    

NASA logo
Goddard Space Flight Center