What Does “Case Resolution” Mean? How AARO Resolves UAP Cases

The All-domain Anomaly Resolution Office (AARO) uses the term “case resolution” for its analytical process on unidentified anomalous phenomena (UAP). The term matters because resolution does not always mean an object has been identified with certainty — it means AARO’s analysis found no anomalous performance and established a plausible ordinary explanation.

What “resolution” means

A resolved case is one AARO can close because its analysis found no anomalous behavior and a plausible prosaic explanation. AARO states its conclusions with explicit confidence levels — for example, high confidence that an object showed no anomalous behavior, but only moderate confidence in a specific identification. Resolution therefore removes a case from the set of genuinely unexplained reports, while not always asserting a definitive identity.

Reported vs. assessed

AARO distinguishes what observers initially reported from what sensor analysis shows. Initial reports are often inaccurate because observers lack range, altitude, or wind information. For the Mt. Etna object, the operator reported a round object at roughly 345 mph at 500 feet; AARO assessed approximately 24 mph at about 15,000 feet — a balloon moving with the wind, roughly 106 miles from the volcano’s plume (not transiting it, as it had appeared).

Motion parallax and wind

A recurring theme is motion parallax — an optical effect in which a slow-moving object viewed from a fast-moving platform appears to move much faster. In the Go Fast case (2015), AARO assessed the object’s wind-compensated speed at roughly 2 m/s (5 mph) to 41.3 m/s (92 mph) at about 13,000 feet, attributing the apparent high speed to parallax. AARO reconstructs the wind at the object’s estimated altitude to model its actual motion.

Confidence and residual uncertainty

AARO’s confidence tracks the quality of the data. For the Puerto Rico object (2013), AARO assessed with high confidence that the objects did not behave anomalously, but only moderate confidence that they were sky lanterns — reflecting the footage’s limitations. This is why a case can be “resolved” while some uncertainty about the exact identity remains.

What resolution is not

A case resolution does not conclude whether an object is “alien” or “conventional.” It establishes that the object showed no anomalous performance, that the reported behavior is explained by ordinary factors (optics, sensors, wind), and that a prosaic explanation is plausible. AARO also notes that its reports are analytic perspectives, not finished intelligence. This archive restates AARO’s published findings and takes no independent position.