The video is being analyzed by experts.

To the naked eye it is difficult to say what it is, but up close we can see a light that apparently changes form.

Hernández says that several members of the Ministerio de Seguridad Pública were present when he filmed the apparent UFO. But, no one else has come forth to lay claim.

What do you think? Are UFO's really visiting Costa Rica? Is it for a delicious serving of Gallo Pinto? Or maybe looking to Oscar Arias to broker some intergalactic coup d'etat or peace agreeement? Would it be called the San José UFO Accord?

Or maybe they got news that Costa Rica has a new president, a woman, and want to learn all they can about this change in Tico machismo?

Whatever, best keep an eye towards the heavens.

According to Wikipedia, the Free Encyclopedia, Unidentified flying object (commonly abbreviated as UFO or U.F.O.) is the popular term for any apparent aerial phenomenon whose cause cannot identified.

The term Unidentified Flying Object has been in use by the United States Air Force from at least as early as February 1948 where it was defined in terms of descriptive characteristics such as shape, speed and manoeuvrability. However in 1952 the USAF more formally defined UFOs as those objects that remain unidentified after scrutiny by expert investigators, though today the term UFO is colloquially used to refer to any unidentifiable sighting regardless of whether it has been investigated.

Another widely known acronym for UFO in Spanish, French, Portuguese and Italian is OVNI (Objeto Volador No Identificado, with variant regional spellings). Some investigators now prefer to use the broader term unidentified aerial phenomenon (or UAP), to avoid the confusion and speculative associations that have become attached to UFO.

Though the term ExtraTerrestrial Vehicle (ETV) is used for only a small subset of UFO studies for many people the term UFO is positively associated with alien spacecraft and many discussions of UFOs revolve around this presumption. While serious UFO researchers maintain that Extraterrestrial Intelligence (ETI) as a cause for UFOs remains a speculative hypothesis only, nevertheless many UFO enthusiasts, contactees, and devotees have created organizations and religions (for example The Church of Scientology) that have adopted extraterrestrial themes. It is therefore fair to state that in general the extraterrestrial UFO concept has evolved into a prominent mythos in modern culture.

Unexplained aerial phenomena have been reported throughout recorded history.

Some were undoubtedly astronomical in nature: comets, bright meteors, one or more of the five planets that can be seen with the naked eye, planetary conjunctions, or atmospheric optical phenomena such as parhelia and lenticular clouds. An example is Halley's Comet, which was recorded first by Chinese astronomers in 240 B.C. and possibly as early as 467 B.C.

UFOs have been subject to investigations over the years that vary widely in scope and scientific rigor. Governments or independent academics in the United States, Canada, the United Kingdom, Japan, Peru, France, Belgium, Sweden, Brazil, Chile, Uruguay, Mexico, Spain, and the Soviet Union are known to have investigated UFO reports at various times.

For more on UFO's click on http://en.wikipedia.org/wiki/Unidentified_flying_object