How all U.S. Air Force pilots since 1968 have met their Mach.
The Spaceplane: 60 Years On Air & Space Forces Magazine
How the space race launched an era of exploration beyond Earth
White Sands Missile Range Museum - Three-stage rocket. Colliers Magazine, 1952. From the mind of Von Braun.
How do space rockets work without air?
San Diego Air & Space Museum - Historical Balboa Park, San Diego
Northrop T-38 Talon
60 years ago, a military pilot made it to space — and set off a debate that rages today
Black Day at White Sands, Air & Space Magazine
Meet the crew of Virgin Galactic's 5th commercial spaceflight launching on Nov. 2
Northrop T-38 Talon, Military Wiki
The Rocket Motor of the Future Breathes Air Like a Jet Engine
Northrop T-38 Talon
Galactic Energy registers sixth consecutive successful launch
Are space launches bad for the environment? - BBC Science Focus Magazine
