Anything a human can imagine.
They come in different shapes and sizes and they never get close enough to be measured.
i am a ufologist and they are mostly cigar shaped and saucers but there are also just orbs
Where humans and alcohol are, UFOs will be.
the correct answer is UFOs thanks for asking
There have been reports of sightings of white UFOs.
The ones who study UFOs are called Ufologist. They study every thing about unidentified flying objects (UFOs).
Please check the related links for information about UFOs.
UFOs can go as high as your imagination allows.
Since UFOs are unidentified, it is unknown what is inside of them.
No, UFOs are not technically extinct, they are just rare to see.
These flying disc known as UFOs are in all kind of shapes and sizes. According to UFO Hunters there was once a UFO reported to be a mile wide, longer than a football field. Some maybe smaller than a airplane.
People have reported sightings of UFOs in France, but there is no proof of their existence.