The U.S. military's classified mini space shuttle returned to Earth on Friday after circling the world for 434 days.
The U.S. military's classified mini space shuttle has returned to Earth after circling the world for 434 days.
US military’s classified space shuttle returns to Earth after secret mission - The classified X-37B vehicle has returned to ...
but rather a very different — and very real — Pontiac-based program that relied on big cubic inches to help usher America’s nascent shuttle design into the later space age. The year was 1963 ...
But after the Space Shuttle Columbia crashed and killed all ... Dubbed the "most advanced re-entry spacecraft," the X-37B program would focus on "risk reduction, experimentation, and operational ...
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