A recent report by the French Sigma/3AF aerospace commission concludes that UFOs are likely to be extraterrestrial craft powered by yet as unknown technologies. According to the report “the technological elements that we selected… allow us to draw some assumptions about the aircraft in question, which do not seem to belong to an identifiable terrestrial technology at the times when they were observed.” This sober conclusion is the result of many years of investigation which included the COMETA report from the 1999. The Sigma/3AF board consists of former French military officials and fighter pilots among others. This report is not final but rather a ongoing investigation into the source of the UFO mystery. Read more about the Sigma/3AF report.