At a special commemorative service to honor NASA's fallen heroes, Evelyn Husband-Thompson, widow of shuttle commander Rick Husband on mission STS-107, shares her memories of the day the space shuttle Columbia was lost as it returned from the mission. Husband-Thompson stands in front of the Space Mirror Memorial at NASA's Kennedy Space Center Visitor Complex. Kennedy marked the NASA Day of Remembrance with special ceremonies. This year the crew of Columbia was remembered in a special way on the day that marked the fifth anniversary of the Columbia accident. Photo credit: NASA/Kim Shiflett