Space Shuttle Columbia disaster the seven Columbia astronauts, as well as the other seven crew members who lost their lives in the Space Shuttle "Challenger" disaster in 1986. The concerts were televised to millions throughout Brazil and the world. On March 26, the United States House of Representatives' Science Committee approved funds for the construction of a memorial at Arlington National Cemetery for the STS-107 crew. A similar memorial was built at the cemetery for the last crew of "Challenger". On October 28, 2003, the names of the astronauts were added to the Space Mirror Memorial at the Kennedy Space Center Visitor Complex. On
Space Shuttle at Edwards Air Force Base, California, or use one of the multiple alternate landing sites around the world. A landing at any site other than Kennedy Space Center meant that after touchdown the Shuttle must be mated to the Shuttle Carrier Aircraft and returned to Cape Canaveral. Space Shuttle "Columbia" (STS-3) once landed at the White Sands Space Harbor, New Mexico; this was viewed as a last resort as NASA scientists believed that the sand could potentially damage the Shuttle's exterior. There were many alternative landing sites that were never used. An example of technical risk analysis for a STS