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Welcome to the website for the All-domain Anomaly Resolution Office (AARO).  Our team of experts is leading the U.S. government’s efforts to address Unidentified Anomalous Phenomena (UAP) using a rigorous scientific framework and a data-driven approach.  Since its establishment in July 2022, AARO has taken important steps to improve data collection, standardize reporting requirements, and mitigate the potential threats to safety and security posed by UAP.  We look forward to using this site to regularly update the public about AARO’s work and findings, and to provide a mechanism for UAP reporting. Thank you for visiting.

Unidentified Anomalous Phenomena (UAP) means (A) airborne objects that are not immediately identifiable; (B) transmedium objects or devices; (C) and submerged objects or devices that are not immediately identifiable and that display behavior or performance characteristics suggesting that the objects or devices may be related to the objects or devices described in subparagraph (A) or (B). (Per the NDAA FY23 Section 1673(d)(8))

The DoD considers Unidentified Anomalous Phenomena (UAP) as sources of anomalous detections in one or more domain (i.e., airborne, seaborne, spaceborne, and/or transmedium) that are not yet attributable to known actors and that demonstrate behaviors that are not readily understood by sensors or observers.

“Anomalous detections” include but are not limited to phenomena that demonstrate apparent capabilities or material that exceed known performance envelopes. A UAP may consist of one or more unidentified anomalous objects and may persist over an extended period of time.