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Science Mission Directorate:
Understanding the Sun, Heliosphere, and Planetary Environments as a single connected system is a goal of the Heliophysics Research Program.
Latest News
Press Releases
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NASA Opens Media Accreditation for California Solar Mission Launch
04.23.13 - News media planning to cover the launch of NASA's Interface Region Imaging Spectrograph (IRIS) mission on June 26 at Vandenberg Air Force Base in California should apply for accreditation by June 18.
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Solar Satellite Arrives at Vandenberg AFB for Launch
04.17.13 - IRIS spacecraft arrives at VAFB for final preparations for a NET May 28 launch aboard a Pegasus rocket.
Feature Stories
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NASA’s STEREO Detects a CME From the Sun
On 5:24 a.m. EDT on May 17, 2013, the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon that can send billions of tons of solar particles into space.
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Activity Continues On the Sun
Active region 1748 has fired off another X-class solar flare, its fourth since rotating into Earth view on May 13, 2013. It is not Earth-directed but did include a coronal mass ejection.
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Impacts of Strong Solar Flares
Some people worry that a gigantic "killer solar flare" could hurl enough energy to destroy Earth, but this is not actually possible.
