This has been long standing since the beginning of the phenomena, and widely referred to as unidentified flying objects.
These events, and sightings of UFOs, have been wide spread throughout the world, through the modern era, and have not been short of controversy. In the beginning, the sceptics and officialdom stated that these sightings and events where the result of misidentifications, such as swamp gas, weather balloons, mass hallucinations, natural phenomena of various origins, and of course downright lying by the witnesses.
Now of course things have changed somewhat, depending on how you look at it. This in itself has draw backs, since various personalities get involved, some holding on to their opinion and trying to prove a point, based upon their experiences, or the way they interpret any experience or evidence that is presented to them. This in turn produces very little in terms of research value to the phenomena.
It cannot now be said that the UFO phenomena doesn’t exist, official reports have confirmed this from the United Kingdom, United States, Brazil, Spain, France, Australia, Denmark and Russia. Yet years passed these sightings from an official point of view did “not exist”, which is now contradicted by the documented evidence.
There is also the fact that classified documents still remain classified concerning the UFO, be it in this well known term, or other terms such as Unknown Tracks which are classified “SECRET REL US & CAN”. Operation Reports – 3 concerning UFOs are classified according to a FOIA official letter from the Office of Secretary of Defense, seen by this individual dated from the 1990s, and were considered “extremely sensitive” by the OSD.
The scepticism now for the most part seems to be not concerning the existence of the phenomena, but to the origins of the UFO. Some of which are now considered to be the result of classified aerial devices and aircraft, be it air breathing or space bound. I have noticed those that are not witnesses to these events seem to judge and draw conclusions without actually being involved in the event or events; this in turn creates problems, since the reliability of the witnesses can be brought into question, regardless of whether in other relative normal events that would not normally be the case.
There has been scepticism in almost all other branches of science, especially if something is introduced which does not fit the main stream view or understanding. This can slow down progress, and indeed has in some cases. Open mindedness is required in studying this phenomena but this may not be just based upon ones education, but experience and personality, and that’s where the problems can lie, and so it continues to this day.
Maybe one day the UFO phenomena will be incontrovertible, as to reveal it for what it really and truthfully is. But it seems that is a long way off at this stage.