Those who are interested in or conduct research on UFOs have noted various sizes, shapes and materials that seem to be associated with them.

The classic disc and cigar shapes have been reported. Triangle or boomerang shapes have also been allegedly spotted.

Sizes of these kinds of objects or craft seem to vary. Some may be the size of a large truck or aircraft, while others are reported to be massive, such as the 1997 "Phoenix lights" case, the recent Empire, Ohio, craft sighted by a truck driver above the "cocoon" and in many other incidents.

Normally, people may think that some kind of metallic, composite or similar material might be part of the construction of these objects, which many speculate could be some kind of spacecraft or secret man-made military aircraft. We can imagine exotic propulsion and navigation systems and other capabilities.

However, many UFOs are reported to appear simply as light or energy of some kind. Whether this is the nature of the UFO itself, an energy field around it, a phenomena occurring as a UFO passes into or out of our space or dimension, a natural phenomena or something else seems unclear.

Of course, biological elements of UFOs are not new. Some people have reported encounters with beings who may look very human, may be somewhat like humans or, in some cases, are clearly living creatures but do not appear very similar to humans.

The accounts in the UK, Texas and Ohio of large glowing things that witnesses immediately and instinctively correlate with a jellyfish, octopus, amoeba or cocoon might indicate that these could be living organisms of some kind.

Of course, this is only speculation. The UFOs described in these cases could be totally unrelated and a reasonable and conventional explanation may be available for them.

If, however, these actually are some type of visiting beings from outside our known conventional environment, they could take forms and shapes that seem very puzzling to us.

It seems to be our responsibility to keep open minds, consider all reasonable explanations and prepare for the possibility that we could be encountering unconventional and unusual phenomena that we do not fully understand at this time.

At the same time, it may be helpful to understand that our national defense, military, intelligence and scientific communities may be trying to handle very sensitive and complex situations of this nature. If this is the case, then their reluctance to be completely open may be based on legitimate and important considerations.

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