David R. Criswell (July 17, 1941 – September 10, 2019)[1] was the Director of the Institute for Space Systems Operations at the University of Houston.In 1968, he received a Doctorate degree in space physics and Astronomy from Rice University in Houston, Texas.[2] He was an active member of the Power from Space Committee of the International Astronautical Federation and participated in IAF and United Nations Summits dealing with supplying energy to Earth.[3] Criswell envisioned that this energy source would spur an unprecedented amount of global economic growth (Gross World Product increasing by a factor of 10), while having a positive environmental impact (fossil fuel-burning power plants would be decommissioned).He estimated that a 1 GigaWatt demo of the lunar-solar power generation system could be built over a 10-year period for approximately $60 billion in 1990 dollars.