YES. UFOs have been sighted for thousands of years and continue to be seen today!. Although most UFOs are natural phenomenon such as lighting balls, Earth lights, swamp gas, and the planet Venus. Some UFOs that have been seen baffle even the most hard headed skeptics.
It depends on how you use it. Sometimes UFO means Unientified Flying Object, and other times it means Unconventional Flying Object. When a person sees an a circular object fly across the sky and slowly disappear, this would be an Unidentfied Flying Object because we do not know if it is an alien spacecraft or weather balloon. When a person sees a saucer shaped object zipping across the sky at fast speeds and making impossible manuvers that no conventional or manmade craft can accomplish, and if the person can see windows and flashing lights coming from the craft (If they get lucky they might even see people in it), it would be an Unconventional Flying Object. Once you have eliminated all other possibilities, it can be considered "unconventional."
First of all, some people have been abducted by Extra Terrestrials and they have been proven to be speaking truthful. Secondly, UFOs (Unconventional Flying Objects) represent technology that obviously isn't manmade and the ET theory seems to be the only possibility. There has been many other theorys saying UFOs are people from other dimensions or timetravelers and these theories could be true. We also have sightings which involves the witness seeing humaniod figures inside the craft, which shows they are intelligent. But to top it off, we have witnesses from military officers, WW2 pilots, radar controll, and much more who can testify that the government has made contact with ETs and they know more about UFOs than they say. Many of these witnesses are involved in the Disclosure Project which was created by Steven M.Greer in order to disclose all UFO material and show the public that we are not alone.
Absolutely not! Most UFOs that were sighted in the 1940s-1970s were seen by pilots, police offcers, ex-military officers, and even the presidents. People whom our lives depend upon have seen UFOs and they are speaking truthfully. If someone has a credible background and is a reliable witness, they should be taking seriously.
There is SO much evidence to support UFOs and ETs. As I have said before, we have good credible witnesses who can testify that UFOs (Unconventional Flying Objects) do indeed exist and they have seen them. Most evidence is used to support abdutees experienes such as: implants appearing and disappearing in impossible places (Physical evidence), passing lie detector test, the appreance and disappearence of unborn babies, knowledge has been given to a few abductees which they couldn't have known, and the credible witnesses who have seen the abduction take place (Linda Cortile's experience).Once someone does some in-depth research on UFOs and abduction cases, they will see there is a an overwhelming amount of evidence.
Our ancestors have indeed seen them! We have cave drawings showing flying saucers or disk shaped objects hovering in the air. We also have some artwork from the middle ages which show flying saucers in the sky with windows, beams of light and even beings inside them! There are also descriptions of disks and different types of UFOs in the sky which are in ancient texts. It says in the Christian Bible that Ezekiel saw a "wheel in the sky" which came from the heavens and four beings with four faces floated out of the vehical and spoke to him!