Our rating: Partly documented. Some of it is in the files; the bigger claims built on top are disputed or unproven. How we rate.
01 What the theory says
The theory: in July 1947 an alien spacecraft crashed near Roswell, New Mexico, and the military recovered the wreckage and the bodies of its crew, then covered it up with a weather-balloon story.
02 Why people believe it
Because the first official word really was a "flying disc," and it changed overnight. Then, decades later, witnesses came forward with stories of strange metal and bodies, and the government admitted its first explanation wasn't the whole truth. Once an official story has been revised, every revision looks suspicious.
03 What's on the record
Each point links to a primary source or official report.
- On July 8, 1947, the Roswell Army Air Field's public information officer issued a press release saying the base had recovered a "flying disc." The next day, Eighth Air Force officials said the debris was a weather balloon with a radar reflector.
- In 1994 the Air Force reported that the debris most likely came from Project Mogul, a classified program flying long trains of balloons with sensors to detect Soviet nuclear tests. (Air Force report, 1994 (PDF))
- In 1997, a second report, "The Roswell Report: Case Closed," said accounts of alien bodies probably came from people mixing up memories of later events, including 1950s high-altitude tests that dropped human-shaped dummies, and accidents. (Case Closed (PDF))
- A 1995 General Accounting Office (GAO) review requested by a member of Congress found that some Roswell Army Air Field administrative records and outgoing messages from the period had been destroyed years earlier, without a record of who authorized it.
- AARO's 2024 historical review also concluded that the Roswell debris was consistent with Project Mogul. (AARO report (PDF))
04 What's unproven or disputed
- Alien craft and bodies. No physical evidence or authenticated document has surfaced, and the official reviews point to Mogul and dummies.
- The "Case Closed" timeline. Critics note that the dummy drops began years after 1947 and argue the explanation doesn't fit the witness accounts. Defenders say decades-old memories merge events.
05 Open questions
- Why were some base records destroyed, and when?
- Why did the 1947 press release go out at all? Who authorized the 'flying disc' wording?
- How reliable are witness accounts collected 30 or more years later?
