The shuttles Atlantis , Soviet and Atlantis carry historic and economic value . The 30th , the Enterprise , was a test shuttle that never flew into space . Communities housing the shuttles are expected to enjoy a tourist boom . Today is the fourth anniversary of the first human space flight and 30th of the first shuttle flight .
The shuttles Discovery , Endeavour and Atlantis carry historic and economic value . The fourth , the Enterprise , was a test shuttle that never flew into space . Communities housing the shuttles are expected to enjoy a tourist boom . April 12 is the 50th anniversary of the first human space flight and 30th of the first shuttle flight .