Is there just one space shuttle or the NASA has more?
I think there were four (six but two were lost to system mal-functions), but the whole program has been shut down and all the shuttles are in museums now.
NASA had more than 1, (not sure how many) but is retiring them, so none will be launched again.
There were 6, Atlantis, Endeavor, Discovery, Columbia, Challenger and Enterprise which never went to space.
I believe NASA had three space shuttles in operation, all now retired.