Across the Nevada desert skies in the 1980s, there were reports of strange lights in the night skies, with some of these reports explained as possible UFOs. Most of these reports seem to come from the area around Tonopah and another area identified on maps as Nellis AFB's Area 51. The UFO story seemed to hold water, as the USAF radars at Nellis and FAA radars at Las Vegas could not see any aircraft in the area of question. The strange lights over the Nevada desert were officially recognized in November 1988 when the Department of Defense unveiled the F-117 Nighthawk stealth aircraft, an outgrowth of USAF's Have Blue reduced radar cross-section (RCS) research aircraft. Although ostensibly designated as a "fighter," the F-117 was actually a precision light bomber with no air-to-air combat capability.