Space Shuttle gliding and landing; it was originally intended to be outfitted for orbital operations after the test program, but it was found more economical to upgrade the structural test article STA-099 into orbiter "Challenger" (OV-099). An additional test article, dubbed "Pathfinder" (OV-098), was built for form and fit tests, and is on display at the Alabama Space and Rocket Center in Huntsville, AL. "Challenger" disintegrated 73 seconds after launch in 1986, and "Endeavour" was built as a replacement from structural spare components. Building "Endeavour" cost about US$1.7 billion. "Columbia" broke apart over Texas during re-entry in 2003. A Space Shuttle launch
Space Shuttle Challenger disaster buried in Rest Lawn Memorial Park in Lake City, South Carolina. Christa McAuliffe's remains are buried at Calvary Cemetery in her hometown of Concord, New Hampshire. Gregory Jarvis was cremated, and his ashes scattered in the Pacific Ocean. Unidentified crew remains were buried communally at the Space Shuttle "Challenger" Memorial in Arlington on May 20, 1986. As a result of the disaster, several National Reconnaissance Office (NRO) satellites that only the shuttle could launch were grounded because of the accident. This is a dilemma NRO had feared since the 1970s when the shuttle was designated as the United States' primary