Front (L-R): Rick D. Husband, mission commander; Kalpana Chawla, mission specialist; and William C. McCool, pilot. Standing (L-R): David M. Brown, Laurel B. Clark, and Michael P. Anderson, all mission specialists; and Ilan Ramon, payload specialist representing the Israeli Space Agency.
Friday marks the 10th anniversary of the space shuttle Columbia disaster.
NASA officials will hold an observance at the Columbia memorial at Arlington National Cemetery, and a wreath-laying ceremony will take place at the space mirror memorial at the Kennedy Space center in Florida.
The remains of three members of crew -- David Brown, Laurel Blair Salton Clark, and Michael P. Anderson -- are interred at Arlington.
The ceremonies will also remember astronauts Richard D. Husband, William C. McCool, Kalpana Chawla and Ilan Ramon.
Their shuttle broke up upon re-entry to Earth's atmosphere on Feb. 1, 2003, killing all seven crewmembers aboard and scattering debris across Texas and into Louisiana.