135
Total Incidents
6
Formal Studies
official reviews, not incidents
157
Source Documents
134 (99%)
Resolved / Explained
2
Tier A Incidents
sensor + formally reviewed

Featured Cases

DAustralia — man
Oceania · 1970-1999

A car chase that escalates from a glowing 'egg' to a pursuing light that punctures a tyre, lifts the car, fills the cabin with soot, and leaves burns, a missing hour, and an unexplained chlorine residue reportedly found by forensic examiners. What makes it stand out is the corroboration chain

DCanada — man
Europe · 1970-1999

A genuine mass-witness event: a stationary light formation over a hotel pool draws a crowd, the police, and press photographers over more than two hours. It captures how a private moment escalates into a shared public spectacle with its own crowd dynamics, long before anyone could reach for a smartphone.

DLithuania — man
Europe · 1970-1999

Notable for the weight of institutional response relative to the sighting itself: two on-duty officers watch a hovering, crackling light for half an hour, approach it, and then an entire police force is placed on alert, with tracker dogs and rapid-reaction units dispatched.

By Credibility Tier

Evidentiary weight, not narrative plausibility

A · Sensor + Reviewed
B · Sensor
C · Multi-witness
D · Single-source

By Era

When the incident occurred — government vs. other sources

Government/declassified
Other (testimony, books, media, etc.)
+ 12 undated (3 gov / 9 other)

Geographic Coverage

Curated incidents and NUFORC bulk-import sightings, by exact coordinates — scroll or use the controls to zoom

Click the map to enable scroll-zoom · double-click to zoom in

About UCD

UCD restructures publicly released UAP records into individually verified, comparable incidents rather than raw documents — so patterns across time, geography, and phenomenon type can actually be examined instead of buried in file counts. Every incident is scored on a credibility tier (evidentiary weight, not how dramatic the account sounds) so the record can be filtered down to only the cases that can actually support a claim.

Credibility tiers

Tier A — sensor/physical-evidence corroborated and/or formally reviewed with a stated confidence rating.
Tier B — sensor, radar, IR, or FMV contact logged in real time, no formal review.
Tier C — multi-witness or institutionally documented narrative, no sensor data.
Tier D — single-source, secondhand, or thin narrative.

Contribute

Have a source document describing a UAP incident? Anyone can submit one for review — it stays off the dashboard until a curator verifies and publishes it.

Submit a document →