Launch Complex 39 (LC-39) is a rocket launch site at the John F. Kennedy Space Center on Merritt Island in Florida, United States. The site and its collection of facilities were originally built for the Apollo program, and later modified for the Space Shuttle program. As of 2017, only Launch Complex 39A is active, launching SpaceX's Falcon 9 and Falcon Heavy. Pad 39B is being modified to launch NASA's Space Launch System. A new, smaller pad, 39C was added in 2015 to support smaller launches but has not yet been used.