Mustard

On November 15, 1988, the world learned that the Soviet Union also had their own space shuttle. It had been secretly under development for well over a decade and it had cost the Soviets billions to build it. Several of the spacecraft were in various stages of construction. But the Soviet shuttle, named the Buran, would only ever launch once. Its development had largely been driven by the need to respond to the perceived military potential of the NASA Space Shuttle.