What event is widely regarded as the world's most famous UFO encounter?

In July 1947, a United States Army Air Forces balloon crashed at a ranch near Roswell, New Mexico, but many speculate that it wasn't a balloon at all. The event has been described as "the world's most famous, most exhaustively investigated, and most thoroughly debunked UFO claim".

Asked by Rachel Bortles · Last updated 4 years ago · 235 views · SOURCE