James Edward Oberg (born November 7, 1944), often known as Jim Oberg, 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.