A disc-shaped craft landed briefly on a French farm, leaving physical traces that were scientifically analyzed by the French government's official UFO research unit.
A teenager witnessed a glowing object that left a hydrophobic ring in the soil with anomalous chemical properties persisting for years.
Anglican priest and 37 witnesses observed a hovering disc with humanoid figures who appeared to wave back when greeted, over a Papua New Guinea mission station.
At least 15 independent witnesses near Levelland, TX reported a glowing object that killed vehicle engines and headlights at close range.
Approximately half the population of Farmington, New Mexico witnessed hundreds of silvery objects maneuvering across the sky in a massive two-day aerial display.
A 10-15 megaton airburst flattened 2,150 km² of Siberian forest with no impact crater - the first modern aerial anomaly to provoke published speculation about extraterrestrial craft.