Sorry, Huh you lost me?
*Scientific
E.g. balls of electrical energy. These phenom can debunk a lot of UFO sightings.
We could also go into the fact the mind often see's what it wants to see when not fed enough visual data.
I actually believe there is intelligent life out there, but I am a realist when it comes to these "sightings" 99.9999999943876843% are frivilous.