A menacing thunderstorm hovers over Launch Complex 39 at NASA's Kennedy Space Center in Florida.

A menacing thunderstorm hovers over Launch Complex 39 at NASA’s Kennedy Space Center in Florida. At left are the behemoth Vehicle Assembly Building, the Launch Control Center and the mobile launcher that will support NASA's Space Launch System heavy-lift rocket, under development.

Kennedy's Ground Support Development and Operations Program is hard at work transforming the center's facilities into a multi-user spaceport, when the weather permits. For more on Kennedy Space Center, visit http://www.nasa.gov/kennedy. Photo credit: NASA/Ben Smegelsky