Sites:
| HESSI at Berkeley: Information on the High Energy Solar Spectroscopic Imager, a NASA Small Explorer mission, including proposal details, scientific objectives, fabrication, testing, and launch photos. | | Pegasus/OSC Launch of HESSI: Includes mission summary and video from the launch. | | RHESSI at NASA Goddard Space Flight Center: Offers project current news, data, software and bug reporting, and science summaries. | | RHESSI Education and Public Outreach: Includes news summary, sun science information, a photo gallery, and K-12 curriculum activities. |
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