KENNEDY SPACE CENTER, FLA. -- Having successfully crossed railroad tracks nearby, this young alligator makes his way toward the water beyond. The track is the one where a train carrying solid rocket booster motor segments is approaching Kennedy Space Center. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- This young alligator approaches the railroad tracks where the train carrying solid rocket booster motor segments is approaching Kennedy Space Center. While enroute, solid rocket motor segments were involved in a derailment in Alabama. The rail cars carrying these segments remained upright and were undamaged. An inspection determined these segment cars could continue on to Florida. The segments themselves will undergo further evaluation at Kennedy before they are cleared for flight. Other segments involved in the derailment will be returned to a plant in Utah for further evaluation. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Solid rocket motor segments and two aft exit cone segments arrive by rail at NASA's Kennedy Space Center. While enroute, solid rocket motor segments were involved in a derailment in Alabama. The rail cars carrying these segments remained upright and were undamaged. An inspection determined these segment cars could continue on to Florida. The segments themselves will undergo further evaluation at Kennedy before they are cleared for flight. Other segments involved in the derailment will be returned to a plant in Utah for further evaluation. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- The locomotive and rail cars carrying solid rocket booster motor segments and two aft exit cone segments cross a road on Kennedy Space Center. These cars are headed for the SRB Assembly and Refurbishment Facility. While enroute, solid rocket motor segments were involved in a derailment in Alabama. The rail cars carrying these segments remained upright and were undamaged. An inspection determined these segment cars could continue on to Florida. The segments themselves will undergo further evaluation at Kennedy before they are cleared for flight. Other segments involved in the derailment will be returned to a plant in Utah for further evaluation. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- This young alligator crosses a road near the railroad tracks where the train carrying solid rocket booster motor segments approaches Kennedy Space Center. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- Solid rocket motor segments and two aft exit cone segments arrive by rail at NASA's Kennedy Space Center. While enroute, solid rocket motor segments were involved in a derailment in Alabama. The rail cars carrying these segments remained upright and were undamaged. An inspection determined these segment cars could continue on to Florida. The segments themselves will undergo further evaluation at Kennedy before they are cleared for flight. Other segments involved in the derailment will be returned to a plant in Utah for further evaluation. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. -- This young alligator climbs on the railroad tracks where the train carrying solid rocket booster motor segments is approaching Kennedy Space Center. While enroute, solid rocket motor segments were involved in a derailment in Alabama. The rail cars carrying these segments remained upright and were undamaged. An inspection determined these segment cars could continue on to Florida. The segments themselves will undergo further evaluation at Kennedy before they are cleared for flight. Other segments involved in the derailment will be returned to a plant in Utah for further evaluation. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- The locomotive and rail cars carrying solid rocket booster motor segments and two aft exit cone segments cross a road on Kennedy Space Center. These cars are headed for the SRB Assembly and Refurbishment Facility. While enroute, solid rocket motor segments were involved in a derailment in Alabama. The rail cars carrying these segments remained upright and were undamaged. An inspection determined these segment cars could continue on to Florida. The segments themselves will undergo further evaluation at Kennedy before they are cleared for flight. Other segments involved in the derailment will be returned to a plant in Utah for further evaluation. Photo credit: NASA/George Shelton

CAPE CANAVERAL, Fla. – The solid rocket booster SRB retrieval ships, Liberty Star and Freedom Star, are docked in the Banana River at Cape Canaveral Air Force Station's Hangar A F. The NASA vessels were used during the space shuttle era to retrieve the SRBs following shuttle launches. Kennedy is located on Merritt Island, a barrier island, about 34 miles long and varying in width from five to 10 miles. Only 6,000 acres are actually used for operational activities. The Kennedy Space Center is also a National Wildlife Refuge. Consisting of 140,000 acres, the refuge provides a wide variety of habitats: coastal dunes, saltwater estuaries and marshes, freshwater impoundments, scrub, pine flatwoods and hardwood hammocks providing habitat for more than 1,500 species of plants and animals. For more information, visit: http://ipv6.nasa.gov/centers/kennedy/shuttleoperations/alligators/kscovrv.html Photo credit: NASA/Ben Smegelsky