"I found that the majority of UFO Sighting reports where by people who were very sincere, and it had energized them to find a place to report what they saw," she said. "They wanted to get this off their chest." California is the top state with most UFO sightings, say UFO experts  A new UFO reference book self-published by two UFO experts with solid, real-world resumes puts California at the top state for most UFO sightings. SFGATE.COM credit Frank Stalter