Commercial Orbital Transportation Services (2006)
NASA funded private companies to build cargo delivery to the International Space Station instead of designing its own vehicle. SpaceX and Orbital Sciences received the awards, and SpaceX's Dragon became the first commercial spacecraft to reach the station in 2012.
NASA gained a second and third cargo supplier, ending sole reliance on government-built rockets.
The fixed-price model became NASA's default way of buying services, and it is the template for both CLPS and VADR.
The Moon Base awards use the same structure: NASA sets the destination, companies own the hardware and sell the delivery.
