Ever since the days of Kenneth Arnold, there has been no crystal-clear, smoking gun evidence that unidentified flying objects are alien spaceships. If there had been, this discussion would not be taking place.

An interesting case is the 2004 Mexican military flir ufo video case in Campeche. Initially unexplained and intriguing, Captain Franz and others showed convincingly that the images were caused by oil flares (just compare the oil flare photos with the video). However, if you search for information on ufo sites, on some the case is still being presented as unsolved. This, unfortunately often happens: something is initially mistakenly identified as an ufo by an astronaut, pilot, etc. and then when an explanation is found, the initial report is not rectified.

A question for impactstyle: what is the difference between being a skeptic and being a non-believer? I, for one, don't consider myself an skeptic. I just can't accept assertions without proof, so I do not believe the assertions. (P.S. your replies would make easier reading, if you broke them down into smaller paragraphs - thanks)

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