Complex sentence: The Hall of Fame was previously owned and operated by the U.S. Space Camp Foundation, but was purchased at auction by Delaware North Park Services in September 2002 on behalf of NASA and the property was added to the Kennedy Space Center Visitor Complex.
Split into simpler sentences: The Hall of Fame was previously owned and operated by the U.S. Space Camp Foundation but was purchased at auction by Delaware North Companies in 2002. In September of that year, an auction was held and the property was purchased by Delaware North Park Services on behalf of NASA and the property was added to the Kennedy Space Center Visitor Complex.