Strict cutbacks in the space shuttle programme has forced NASA to ask an American museum to return spare parts that the space agency donated 11 years ago. The full-size mock-up of the space shuttle at the Space & Rocket Center in Huntsville, Alabama, contains the original forward assemblies of NASA's solid rocket boosters. According to a spokesman for the museum, United Space Alliance, a NASA contractor, hopes to save 'millions of dollars' in production costs by using the display equipment.