Peebles was probably best known as a leading skeptic of UFO sightings and incidents, and he was interviewed for several television documentaries dealing with UFOs. He appeared in the A&E Network's 1997 documentary "Where Are All the UFOs?", on the syndicated series UFO Diaries, and on the History Channel documentaries "Unsolved History: Area 51", "Roswell: The Final Declassification", and History's Mysteries. In his 1994 book Watch the Skies!, a skeptical history of the UFO phenomenon, Peebles wrote: "I am a skeptic. I believe flying saucer reports are misinterpretations of conventional objects, phenomena, and experiences. I do not believe the evidence indicates the Earth is under massive surveillance by disk-shaped alien spaceships." However, Peebles added that "these conclusions are those of the author; readers [of this book] are encouraged to make up their own minds." Choice: Current Reviews for Academic Libraries wrote in its review of Watch the Skies! that "this chronicle of the flying saucer myth is well written and provides fair balance to a very controversial topic," while Library Journal wrote that "Peebles has compiled a splendid history of this modern myth...He gives a history of practically every major UFO case since 1947, along with a discussion of the investigation and the probable correct explanation."[3]
In addition to his UFO research, Peebles also wrote a dozen books and over 40 magazine articles dealing with a variety of aerial phenomena and aerospace history.[1] His articles were published in such periodicals as Spaceflight and Space Education Magazine.[1] Among his books were The Corona Project: America's First Spy Satellites, Dark Eagles: A History of Top Secret U.S. Aircraft Programs, From Runway to Orbit: Recollections of a NASA Engineer, and a series of oral histories from flight personnel at NASA's Armstrong Flight Research Center. His final book, Probing the Sky: Selected NACA Research Airplanes and Their Contributions to Flight, was published in 2014.[1] Starting in 1977, Peebles was a freelance writer for Analytical Systems and Materials, an aeronautical engineering and research firm.[1] He was an aerospace historian for the Smithsonian Institution in the 1990s, and from 2000 to 2013 he was a researcher and aerospace historian for the Dryden Flight Research Center (today the Armstrong Flight Research Center). He was a Fellow of the British Interplanetary Society, and a member of the Flight Test Historical Foundation.[1]
In August 2013, Peebles was diagnosed with progressive, irreversible memory loss.[2] He died on June 25, 2017, at the age of 62.[1]
Books by Peebles
Watch the Skies! A Chronicle of the Flying Saucer Myth, 1994. Smithsonian Institution Press. ISBN1-56098-343-4
The Corona Project: America's First Spy Satellites, Annapolis: Naval Institute Press. ISBN1-55750-688-4.
Flying Without Wings: NASA Lifting Bodies and the Birth of the Space Shuttle (Smithsonian History of Aviation and Spaceflight) (with Milton O. Thompson), 1999 ISBN0-947554-78-5