the price of knowledge - digital collage

the-price-of-knowledge

NASA built six Space Shuttles.  Enterprise was used for flight tests only.  Columbia, Challenger, Discovery, Atlantis and Endeavour were reusable low Earth orbital spacecraft, used to launch satellites, conduct science experiments in orbit and service the International Space Station.  135 missions were flown between 1981 and 2011. Challenger and Columbia were both destroyed in mission…