How to judge UFO evidence: pilots, researchers and astrophysicists compare notes

September 29, 2026 · 18 min read

A Navy pilot describes what he saw, Jacques Vallée explains how to analyze physical evidence and how radar can mislead, and Adam Frank sets a scientist's bar for proof. Together they offer a practical framework for separating the unexplained few percent from noise.

The insight in about three minutes.

To judge UFO evidence, expect the ordinary, check how each sensor can fool you, demand multiple witnesses, physical traces and calibrated instruments, and keep only what survives that filter. That is the working method that emerges when a pilot, a veteran researcher and an astrophysicist compare notes.

Jacques Vallée, an astronomer and computer scientist who has documented reports for decades, starts with base rates. He agrees with France's official investigators that about 95 percent of reports have rational explanations, such as the moon through fog or aircraft. "The other 5% is in your face". He gives weight to testimony from multiple independent witnesses and to physical traces, and excludes artwork. He insists that physical samples be analyzed like any other material and put through peer review. He also warns that radar can lie. Devices exist that feed back false signals, and he was told of flights dressed up with lights to look like UFOs.

Former Navy pilot Ryan Graves describes what trained observers saw. After a radar upgrade around 2014, his squadron detected objects over the water that older radars had missed. Infrared and weapons systems confirmed them, yet pilots flying within about 500 feet saw nothing. One pilot had a near miss with what he described as a cube inside a clear sphere. Graves is careful with rumors: he checked and rejected the claim that the East Coast drones were hunting a loose nuke. He says many cases stay unresolved because of law and bureaucracy, not missing technology, and he wants an open, unclassified national research effort.

Astrophysicist Adam Frank sets the bar. He supports open, transparent study, but says no evidence so far comes close to supporting claims of non-human technology. Any such claim must survive the same brutal scrutiny as other discoveries: "You don't get a pass because it's a really cool topic". His bet is that the objects are most likely adversaries probing each other's radar.

They agree that most reports are ordinary, that the residue is worth studying, that sensors must be understood, and that human adversaries are a live explanation. They disagree on how much pilot testimony counts. Vallée treats the cube-in-a-sphere as an open question and offers balloons as one possibility. They also differ on whether older, detailed records or new purpose-built instruments matter more.

Physicist Thomas Campbell dissents from the whole frame. In his model a consciousness system could create such experiences, traces included, and he holds that personal experience is its own truth. That idea cannot be tested by any sample.

What to do with it: start with the ordinary. Ask which instruments saw a thing and how each can fail, and count a case as multi-sensor only when the sensors are independent. Look for several independent witnesses and physical traces. Test rumors against what would have to be true. Handle samples properly and submit the work to expert reviewers. Keep human adversaries on the list, support better data collection, and label speculation as speculation. Unexplained does not mean alien, and it does not mean nothing.

This is the short form. The full insight has every expert's reasoning, their own words and the sources.