Exploring the phenomenon of the early 1990s when thousands of people spotted the same unidentified flying object in the country of Belgium: the Belgian UFO Wave. In the early 1990s, an influx of UFO sightings was reported near Brussels, Belgium. Over the course of 5 months, over 1,000 people reported seeing the same, unidentified flying object soaring through the sky. The phenomenon left the public baffled and researchers stumped. Today, we’re discussing the Belgian UFO Wave.