The Space Mirror Memorial, which forms part of the larger Astronauts Memorial, is a National Memorial on the grounds of the John F. Kennedy Space Center Visitor Complex on Merritt Island, Florida. It is maintained by the Astronauts Memorial Foundation (AMF), whose offices are located in the NASA Center for Space Education next door to the Visitor Complex. The memorial was designed in 1987 by Holt Hinshaw Pfau Jones, and dedicated on May 9, 1991, to remember the lives of the men and women who have died in the various space programs of the United States, particularly those of NASA. The Astronauts Memorial has been designated by the U.S. Congress "as the national memorial to astronauts who die in the line of duty" (Joint Resolution 214, 1991). In addition to 20 NASA career astronauts, the memorial includes the names of a U.S. Air Force X-15 test pilot, a U.S. Air Force officer who died while training for a then-classified military space program, a civilian spaceflight participant who died in the Challenger disaster, and an Israeli astronaut who was killed in the Columbia disaster. In July 2019, the AMF unanimously voted to include private astronauts on the memorial, recognizing the important contributions made to the American space program by private spaceflight crew members. The first private astronaut to be added to the wall was Scaled Composites pilot Michael T. Alsbury, who died in the crash of SpaceShipTwo VSS Enterprise on October 31, 2014. His name was added to the memorial on January 25, 2020. Memorial elements The primary feature of the memorial is the Space Mirror, a flat expanse of polished black granite, 42.5 feet high by 50 feet wide, divided into 90 smaller panels. The names of the 25 astronauts who have died are scattered over the mirror, with names of astronauts who died in the same incident grouped on the same panel, or pairs of adjacent panels. The names are cut completely through the surface, exposing a translucent backing, and filled with translucent acrylic, which is then backlit with LED lights, causing the names to glow, and appear to float in a reflection of the sky. Near the Space Mirror is a granite wall, bearing pictures and brief biographies of those listed on the Mirror. The Space Mirror Memorial was designed by Wes Jones of Holt Hinshaw Pfau Jones and was commissioned after he won an international design competition.