MYSTERY surrounds a UFO-like aircraft that was seen being towed into a top-secret US military base. According to reports, it was spotted at Lockheed Martin’s secretive Helendale radar-cross section (RCS) measurement facility in the Mojave Desert, California. The mystery craft was spotted being towed into a top-secret base in a California base The mystery craft was spotted being towed into a top-secret base in a California base A short video of the unidentified aircraft first emerged on TikTok and then the location was tracked down by internet sleuth Ruben Hofs. The footage shows what looks like an inverted stealth aircraft...