Area 51 is a highly secretive United States Air Force facility at Groom Lake, Nevada, and the single most famous site in modern UFO folklore. Though its real documented history concerns classified Cold War aircraft development, its name has become globally synonymous with claims of recovered alien spacecraft and government cover-up.
Real history
The site began as a gunnery range during the Second World War, before being redeveloped from the 1950s onward as a testing ground for classified aircraft, starting with Lockheed's U-2 spy plane. Following the 1960 shootdown of Francis Gary Powers's U-2 over the Soviet Union, development shifted to its successor, the A-12 "Oxcart" — a titanium-bodied aircraft capable of flying across the continental United States in around 70 minutes, largely undetectable to radar of the period. The base subsequently supported testing of further classified programmes, including the D-21 "Tagboard" drone and the F-117 stealth fighter.
The U.S. government did not formally acknowledge the base's existence for decades. In August 2013, a 20-year-old CIA history of the site, released following a Freedom of Information request by George Washington University's National Security Archive, became the clearest official confirmation of Area 51's existence — though the declassified document made no reference to UFOs, aliens, or any of the wider conspiracy claims associated with the site, confining itself entirely to conventional aircraft development.
Bob Lazar and S-4
Bob Lazar is the figure most responsible for fusing Area 51 with modern UFO belief. In a 1989 interview with Las Vegas station KLAS, Lazar claimed to have worked as a physicist at a facility he called "S-4," a few miles south of Area 51 itself, reverse-engineering extraterrestrial spacecraft — including a vehicle he dubbed the "Sport Model" — allegedly powered by a then-undiscovered element, "Element 115." Lazar's account has never been independently verified, and critics have pointed to inconsistencies in his claimed academic and employment history, alongside a described lack of technical rigour inconsistent with genuine advanced physics work. Despite this, his story proved unusually durable, and is widely credited with transforming Area 51's public reputation and turning the surrounding Nevada desert into a magnet for UFO tourism.
Operation Blue Book
From 1952, the U.S. Air Force ran Operation Blue Book, a formal programme investigating civilian UFO reports by comparing witness accounts against classified flight logs — logs that, in many cases, corresponded to secret aircraft being tested at sites including Area 51. Sightings of genuinely advanced, otherwise-unexplainable aircraft are widely credited as a major real-world source of the broader American UFO sighting wave of the mid-20th century.
Local UFO tourism
The stretch of Nevada State Route 375 running near the base has been officially designated the "Extraterrestrial Highway," and the nearby town of Rachel, Nevada, is home to the Little A'Le'Inn, a restaurant and bar that has become a well-known stop for UFO enthusiasts visiting the area.