LIGHTING A MEMORIAL CANDLE DURING THE JAN. 29 DAY OF REMEMBRANCE OBSERVANCE AT NASA'S MARSHALL SPACE FLIGHT CENTER ARE, FROM LEFT, PATRICK SCHEUERMANN, MARSHALL DIRECTOR; JOHN HONEYCUTT, DEPUTY MANAGER OF THE SPACE LAUNCH SYSTEM; AND RETIRED ASTRONAUT ROBERT “HOOT” GIBSON. THE CEREMONY IN BUILDING 4200 PAID TRIBUTE TO THE CREWS OF APOLLO 1 AND SPACE SHUTTLES CHALLENGER AND COLUMBIA, AS WELL AS OTHER NASA COLLEAGUES.