Only if you believe they do.
No.
I guess the strongest evidence for not believing in UFOs would be that they haven't landed and introduced themselves. For some people to believe they would have to see the beings.
Hundreds of people have CLAIMED to have been abducted by UFOs, but many of the claims are obviously false and most of the rest have been of dubious veracity. There have been no positive evidence that any humans have been abducted from Earth by extra-terrestrial visitors. (But then, that's what "THEY" want us to believe!!)
Many people claim to have seen UFOs.
No Most people don't even believe in Ufos so no need to be worried
There are those among us who believe that UFOs have always been hovering nearby.
Astrobiologists. //I believe UFOlogist is the correct word, a person that studies and pursues all things alien.
People have reported sightings of UFOs in France, but there is no proof of their existence.
My own personal opinion is that a large percentage of UFOs have a rational explaination. But there are a few that I believe are beings from other planets. There have been far too many sightings that can't be explained.
The ones who study UFOs are called Ufologist. They study every thing about unidentified flying objects (UFOs).
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