James Edward Oberg (born November 7, 1944) is an American space journalist and historian, regarded as an expert on the Russian and Chinese space programs. He had a 22-year career as a space engineer in NASA specializing in orbital rendezvous. Oberg is an author of ten books and more than a thousand articles on space flight. He gave many explanations of UFO phenomena in the popular press. He is also a consultant in spaceflight operations and safety. Early life and education James Oberg was born in New York City on November 7, 1944. He received a B.A. in Mathematics from Ohio Wesleyan University in 1966, a M.S. in applied mathematics (astrodynamics) from Northwestern University in 1969 (where he was also a NASA Trainee) and a M.S. in computer science from University of New Mexico in 1972. US Air Force At Northwestern University he started Ph.D. work in Mathematics, but was called to active duty by the United States Air Force in 1970. There he worked with modeling laser and nuclear weapons and in the years 1972–1975, while working in the Department of Defense Computer Institute, he helped design and test ARPANET, ancestor of the Internet. NASA After service in the United States Air Force, he joined NASA in 1975, where he worked until 1997 at Johnson Space Center on the Space Shuttle program. He worked in the Mission Control Center for several Space Shuttle missions from STS-1 on, specializing in orbital rendezvous techniques. This culminated in planning the orbit for the STS-88 mission, the first International Space Station (ISS) assembly flight. During the 1990s, he was involved in NASA studies of the Soviet space program, with particular emphasis on safety aspects; these had often been covered up or downplayed, and with the advent of the ISS and the Shuttle–Mir programs, NASA was keen to study them as much as possible. He privately published several books on the Soviet (and later Russian) programs, and became one of the few Western specialists on Russian space history. He has often been called to testify before the US Congress on the Russian space program. In 1997 he voluntarily resigned from NASA and started a full-time free-lance career. Currently he works as a consultant in spaceflight operations and safety and as a space journalist. Author and journalist As a journalist, Oberg writes for several publications, mostly online; he was previously a space correspondent or commentator