The Launch Complex 39 (LC-39) is a rocket launch facility of KSC. The site was originally made for the Apollo program. Later, it was modified for the Space Shuttle program. , only Pad 39A is in use to launch SpaceX's Falcon 9 and Falcon Heavy. Pad 39B is modifying for NASA's Space Launch System. The Pad 39C was added in 2015 for small rocket launches, although it is not in use.