Photos and physical evidence have vanished or been tampered with just as in so many UFO cases.

There are UFO cases of this also.

Examine some of the most famous UFO cases of all time in an attempt to get to the bottom of this ongoing debate.

There are very few authentic UFO cases.

But in anywhere from 5 to 10 percent of UFO cases, the object remains a mystery.

The paralysis reported in so many UFO cases is really a form of hypnosis.

The panel dismissed nearly all of the UFO cases it examined as not representing anything unusual or threatening to national security.

Both groups described it as being one of Australia's major unexplained UFO cases.

Based on this, and other UFO cases, Sign's personnel began to favor the extraterrestrial hypothesis.

It is one of very few UFO cases to result in civil court proceedings.