- **Secret Military Projects**: Beyond UFO theories, there'…

palmbird ·

- **Secret Military Projects**: Beyond UFO theories, there's acknowledgment that Area 51 has been involved with top-secret aircraft like the U-2 spy plane, the A-12 Oxcart which evolved into the SR-71 Blackbird, the F-117A Nighthawk stealth fighter, and possibly the B-2 Spirit and other classified projects.