NUFORC's World UFO Day post invites the public to celebrate and investigate what it calls one of the great mysteries of our time.
World UFO Day is cultural as much as investigative. It gives communities, witnesses, researchers, skeptics, and enthusiasts a shared date to revisit famous cases and submit new reports.
For NUFORC, the event is also an opportunity to remind the public that reporting matters. A witness account with time, location, direction, duration, and media can become useful data; a vague story is harder to analyze.
The celebratory tone should not be confused with proof. Public enthusiasm can bring in reports, but each report still needs careful checking against ordinary explanations.
The item belongs here because UFO research is sustained by public participation. World UFO Day shows the social side of the archive: people do not only consume mysteries, they help create the record.