
The long, curved wing of the Centurion remotely piloted flying wing is clearly visible, taken during an initial series of…

The NASA X-43A hypersonic research vehicle and its Pegasus booster rocket, mounted beneath the wing of their B-52 mothership, had…

NASA's X-38, a research vehicle developed as part of an effort to build an emergency Crew Return Vehicle for the…

NASA X-43A Monitor Station Operator Brad Neal performs final checks and pre-flight preparations aboard the B-52 for the third X-43A…

The Hyper-X X-43A project team in front of NASA's B-52B launch aircraft with the Pegasus booster and X-43A vehicle attached.

An artist's conception of the X-43A Hypersonic Experimental Vehicle, or "Hyper-X" in flight.

The Centurion remotely piloted, solar-powered aircraft is silhouetted by the early morning sun on Rogers Dry Lake, adjacent to NASA's…

A quarter-scale model of the future Centurion solar-powered high-altitude research aircraft settles in for landing after a March 1997 test…

Illuminated by early-morning sunlight, a quarter-scale model of the solar-powered, remotely piloted Centurion ultra-high-altitude flying wing soars over California's Mojave…

The Orion flight test crew module that was used for the Orion Launch Abort System Pad Abort 1 flight test…