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The 2021 preliminary assessment describes the information available to the UAP Task Force and the difficulties of drawing conclusions from inconsistent or incomplete reporting.
A preliminary assessment is not a final explanation
Its report categories and recommendations should be read in their historical context. An unresolved report does not by itself establish extraordinary performance or extraterrestrial origin. Later evidence can change a case assessment without altering the original document.
Source chronology
Dates below describe source publication, which may differ from the date of an observation or event.
Preliminary Assessment: Unidentified Aerial Phenomena
Office of the Director of National Intelligence · Original recordConnected knowledge
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