US Pentagon releases second batch of declassified UFO files

Departamento of Defesa of Estados Unidos released a second batch of previously classified documents on alleged UFO sightings on Friday. The material includes references to people reporting unexplained green spheres, disks, and fireballs. The disclosure took place by order of Presidente Donald Trump, which had already made the first batch public on May 8.

The decision marks another episode in a disclosure process that began in the late 1970s, when successive American presidents opened government reports on unidentified flying objects. Defesa Pete Hegseth’s Secretário stated that documents, photos and videos of what are officially known as “unidentified anomalous phenomena” have long fueled speculation.

Conteúdo of released files

Pentágono released 222 files on Friday. One contains 116 pages of documentation relating to a series of reported sightings and investigations at a highly secretive facility at Sandia, Novo México, between 1948 and 1950. Departamento of Defesa reported that the file records 209 reported sightings of “green spheres”, “discs” and “fireballs” near the military base.

The now public documents include photographic evidence and witness records. A released image shows a football-shaped body reported by US Comando Indo-Pacific in 2024. The material offers previously restricted details about investigations conducted decades ago, when Guerra Fria was raising tension and interest in unknown technologies.

Declarações Officials and Context

“It’s time for the American people to see for themselves,” Hegseth said in an official statement. The phrase summarizes the administration’s position on transparency regarding unidentified aerial phenomena. Especialistas analyzed the first batch released in May and found that it contained new videos of already known sightings, but without conclusive evidence of alien technology or extraterrestrial life.

The release of the files represents a continuation of the disclosure policy that began almost 50 years ago. Diferentes American governments adopted varied positions on the issue, alternating periods of secrecy with moments of partial disclosure of information. The current Trump administration chose to accelerate this process, justifying transparency as an American citizen’s right.

Fenômenos aerial and historical investigations

Sandia’s records reveal a pattern of sightings concentrated between 1948 and 1950. The proximity to the military base suggested strategic relevance to investigators at the time. Descriptions vary between luminous spheres, discoid formations and incandescent objects, with multiple documented testimonies.

Experts note that many of these historic sightings occurred during the development of classified aeronautical technologies by the US itself. Experimental Mísseis, reconnaissance planes, and high-altitude prototypes often generated confusion among civilian and military observers. Alguns phenomena have remained without clear explanation to this day.

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Processo declassification

• 222 files released on Friday
• 116 pages on investigations into Sandia (1948-1950)
• 209 recorded sightings at the secret facility
• Primeira disclosure took place on May 8, 2026
• Processo started in the 1970s

The Trump administration has established a clear agenda for reviewing classified documents on the topic. Agências involved in the analysis include Departamento of Defesa, military intelligence and units specializing in aerial phenomena research. The schedule foresees continuous reviews of files that are still classified.

Reação from the scientific community

Cientistas and researchers analyzed the materials made available and reached cautious conclusions. Nenhuma of the evidence presented to date offers definitive proof of an extraterrestrial origin for the phenomena. Explicações alternatives include unknown atmospheric phenomena, classified government experimentation, and misidentification of terrestrial objects.

Professores from astrophysics and ufology point out that the lack of definitive conclusions is an expected characteristic of these files. Investigações performed decades ago faced significant technological limitations. Câmeras, radars and tracking systems at the time had lower resolution than contemporary standards, complicating retrospective analyses.

Government Transparency Implicações

The mass release of documents on unidentified aerial phenomena reflects a change in the American government’s approach to topics previously considered highly sensitive. Public access to these files allows independent researchers to conduct their own analyses. Universidades, private research institutes and amateur investigators can now examine the same documentation that official bodies have analyzed.

The transparency strategy also reduces the space for unfounded speculation about what the government is “hiding”. By making original documentation available, the administration claims control of the narrative regarding unidentified aerial phenomena. Críticos argue that some files remain sealed, suggesting that the declassification is partial. Departamento of Defesa maintains that certain documents related to operational military capabilities remain protected for legitimate national security reasons.