No they don't, and you ever tells you they do are lying
The instant they are found they cease to exist. They are found and then they are identified. Once identified they cease to be UFOs.
It is impossible to even speculate. There is no admitted proof that UFOs do exist and no hard information on propulsion.
Like flying machines on Earth, UFOs are equipted with landing gear.
Roswell Yes and Ufo's No
Extraterrestrial life forms-if they exist.
No accurate records exist.
No accurate records exist.
Yes.... People have seen UFOs.
UFOs are very often seen on Earth, and nobody knows what is inside of one. If there are truly UFOs from space, when they supposedly come to Earth they may already be learning from us.
No, but most believers don't need proof.
No accurate records exist.