There are fascinating UFO sightings that come from both civilian witnesses and highly trained military pilots. These sightings describe movements that are impossible based on our current technology. While this doesn't prove they are extraterrestrial, it does prove that there is something unknown happening. Son fascinantes porque no sólo provienen de testigos civiles, sino de pilotos militares altamente entrenados. Describen movimientos imposibles según nuestra tecnología actual. Esto no prueba que sean extraterrestres, pero sí algo que desconocemos.