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The Space Shuttle Discovery is one of 5 orbiters that were built. It conducted 35 missions, flew a distance of 238,539,663 km and was in space exactly 365 days, 22 hours, 39 minutes and 33 seconds. This new block set from COBI was just launched! This is a block replica that you can build and enjoy playing with. You can even open the payload bay doors and deploy the Hubble Space Telescope.