CAPE CANAVERAL, Fla. -- State Sen. Thad Altman, president and chief executive officer of the Astronauts Memorial Foundation speaks during the Day of Remembrance ceremony. Seated to the right are, from the left, former NASA astronaut Jon McBride, chairman of the Astronauts Memorial Foundation board of directors Evelyn Husband-Thompson, widow of STS-107 commander Rick Husband Eileen Collins, commander of Discovery on the STS-114 mission that returned the shuttle program to flight following STS-107 Kennedy Space Center director Bob Cabana Associate Administrator for Human Exploration and Operations William Gerstenmaier NASA Associate Administrator Robert Lightfoot and Mick Ukleja, chairman of the AMF board of trustees. Space center Employees and guests gathered at the Space Mirror Memorial at the visitor complex for the annual event which took place on the 10th anniversary of the loss of the space shuttle Columbia and its crew. The ceremony also honored the astronauts of Apollo 1 and the shuttle Challenger. Dedicated in 1991, the names of fallen astronauts are emblazoned the Space Mirror Memorial's 4.5-foot-high-by-50-foot-wide polished black granite surface which reflects the sky and has been designated by Congress as a National Memorial. Image credit: NASA Television