Summary and Key Points: For decades, rumors claimed the U.S. had secretly built the SR-91 Aurora — a hypersonic spy plane flying at Mach 5 to replace the SR-71 Blackbird.
-The legend was fueled by a mysterious 1980s Pentagon budget line, a triangular aircraft spotted over the North Sea, and “sky quakes” over Los Angeles near Area 51.
B-2 Bomber Sitting in Museum National Security Journal Photos. All Rights Reserved.
B-2 Stealth Bomber July 2025 National Security Journal Photo.