NASA will pay tribute to the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other NASA colleagues, during the agency's Day of Remembrance on Friday, Jan. 31.

NASA's Day of Remembrance honors members of the NASA family who lost their lives while furthering the cause of exploration and discovery.

NASA Administrator Charles Bolden and other agency senior officials will hold an observance and wreath-laying at Arlington National Cemetery Friday morning.

Other tributes across the agency include a wreath-laying ceremony at the Space Mirror Memorial located in the Kennedy Space Center Visitor Complex in Florida and NASA's Ames Research Center at Moffett Field, California will hold a remembrance ceremony at its visitor center, the Exploration Center.

On Thursday, Jan. 30, NASA's Johnson Space Center in Houston will hold a tree planting ceremony in honor of former astronaut C. Gordon "Gordo" Fullerton. All employees are encouraged to observe a moment of silence to remember their fallen friends and colleagues. NASA's Marshall Space Flight Center in Huntsville, Ala., will hold a wreath-laying ceremony for employees followed by a public ceremony at the U.S. Space & Rocket Center.

NASA also is paying tribute to the agency's fallen astronauts with special online content available at:

http://go.nasa.gov/1b5Oh9I

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