Very large cranes are being constructed on Launch Pad 39B at NASA's Kennedy Space Center in Florida to aid in erecting the lightning towers to hold catenary wires as part of the new lightning protection system for the Constellation Program and Ares/Orion launches. Pad 39B will be the site of the first Ares vehicle launch, including Ares I-X test flight that is targeted for July 2009. Photo credit: NASA/Tim Jacobs