At the end of
Second World War, the Director of the Evans Signal Laboratory, Lt. Col.
John H. DeWitt Jr., was interested in peacetime uses of wartime equipment. He proposed that if radar signals could be reflected from the surface of the Moon, perhaps a commercial use could be developed for broadcasting television signals. He code-named the venture Project Diana after the Roman goddess of the Moon. The Project Diana team was led by Dewitt. The principal members were Chief Scientist
Edwin King Stodola, Radio Engineer Herbert Kauffman, Radio Engineer Jacob Mofenson, and Electrical Engineer Webb. The project used re-purposed radar equipment housed in temporary shacks and a large “bedspring” antenna located near the Marconi Building at Camp Evans. On January 10, 1946, the team successfully bounced a radio signal off the Moon and detected the resulting echo (
Earth-Moon-Earth communication or EME). Webb and Kauffman were staffing the equipment at that time, and were the first to hear the echo. Because of skepticism of other scientists and military officials, the Diana Project members were required to sign a notarized statement that they had, in fact, heard echoes from the Moon. Webb's work on Project Diana was key to its success. Besides the improvements to the equipment that he developed, Webb was instrumental in determining how to propagate radio waves that could reach the Moon. Webb felt that his two main contributions to Project Diana were to recognize that the equipment needed to be modified to better take into account the Doppler effect of the returning radio beam, and that better results could be obtained at moonrise due to the greater antenna gain over the ocean at that time. Project Diana functionally marked the birth of
radar astronomy, and the beginning of the space age. It also established the naming convention for space exploration; for decades, all subsequent space exploration projects were named based on Greek or Roman mythology (Apollo, Mercury, Gemini, etc.). Before the success of Project Diana, it was thought by many scientists that it would be impossible to penetrate the outer layers of the Earth's atmosphere and ionosphere with radio waves to reach into outer space. The echoes heard by Webb and his colleagues were the first that humans had contacted an object beyond the confines of Earth. The application of radar astronomy to conduct space exploration and space travel became immediately apparent. Since 1946, mapping of
astronomical objects has been done with radar. The basic technique of bouncing radio signals off of distant bodies is still used to gather data about the
geological and dynamic properties of many of the
Solar System's planets. Additionally, the technique has been used to determine the scale of the Solar System itself. The Diana Project made headlines in all the major newspapers of the day, was written up in magazines, and became part of the post-war popular culture. The project was used to sell Pepsi and other products, and was featured in a newsreel shown at movie theaters across the country. Webb was even featured in a science-themed news comic book. A 70th Anniversary celebration of Project Diana's success occurred in 2016. A 75th Anniversary celebration occurred on January 10, 2021. ==Later career==