Construction crews lay sand reinforcing steel and wooden mats to protect the structure's concrete from falling debris during deconstruction.

At NASA's Kennedy Space Center in Florida, construction crews lay sand, reinforcing steel and large wooden mats under the rotating service structure (RSS) of Launch Pad 39B to protect the structure's concrete from falling debris during deconstruction.

Starting in 2009, the structure at the pad was no longer needed for NASA's Space Shuttle Program, so it is being restructured for future use. The new design will feature a "clean pad" for rockets to come with their own launcher, making it more versatile for a number of vehicles. For information on NASA's future plans, visit www.nasa.gov. Photo credit: NASA/Jim Grossmann