Reuven Ramaty was a pioneer in the fields of solar physics, gamma-ray astronomy, nuclear astrophysics, and cosmic rays. He was a HESSI Co-Investigator and one of the founding members of the HESSI team. His active involvement and enthusiastic support were critical for HESSI’s selection by NASA as the sixth Small Explorer (SMEX) mission. Following the launch on 5 February 2002, HESSI was renamed in his honor. Wikipedia
Reuven Ramaty , a pioneer in high energy astrophysics, died of complications from amyotrophic lateral sclerosis, or Lou Gehrig's disease, at his home in Silver Spring, Maryland, on 8 April 2001. Undaunted by the ravages of his illness, he was still study hesperia.gsfc.nasa.gov/hessi/news/ramaty.html
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