Only if there is someone or something to observe them. UFO stand for Unidentified Flying Object. That means no one knows what it is. It does not mean it is a space craft of some kind.
No.
Some people believe that spaceships from other planets have visited Earth, but no one has ever been able to prove it.
You don't even know if UFOs exist, and no-one will ever know how/if they land on earth at all. Sure UFOs exist, standing for "Unidentified Flying Object", doesn't mean it has to be an alien spacecraft. Which also gives you the answer - they fly to Earth.
no fairies don't exist any where..
yes
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 instant they are found they cease to exist. They are found and then they are identified. Once identified they cease to be UFOs.
The existence of the so-called UFOs has not been conclusively confirmed. Therefore, we may be receiving visitors from other planets or moons of our own solar system, from other stars, or we may be receiving no visitors at all.
It is impossible to even speculate. There is no admitted proof that UFOs do exist and no hard information on propulsion.
It obviously does.
Currently there is no firm evidence that UFOs really exist. That doesn't mean they may not be real; it just hasn't been established as a fact so far, at least in the public eye. In many individual cases, it might be a hoax - but this still isn't any proof that they don't exist. It is logical to assume, though, that as there is life on the planet Earth, there's as much a possibility of life on other planets as there is here.
no becuse there is no suck thing as ufo's and allians an if there are life form on other planets they cant come here cuz the havenmt invented metle or eneything like that becuse it is very plean on other planets