There is scientific analysis (Blue Book Special Report 14, and the Condon Study) that shows UFO sightings are representative of a unique phenomena. Essentially proof of UFO reality.
In the two videos below Stanton Friedman talks about scientific inquiry applied to the question of UFOs, and the findings of Blue Book Special Report 14. These are MUST SEE clips for anyone interested in science:
Stan Friedman on Sagan and science
Stan Friedman on Project Blue Book Special Report #14
[Posted at the SpookyWeather blog, October 9th, 2018.]