Sandy Anderson, widow of space shuttle Columbia astronaut Michael Anderson, is comforted by astronaut Carlos Noriega during the annual National Day of Remembrance ceremony in the Astronaut Memorial ... more 
Sandy Anderson, widow of space shuttle Columbia astronaut Michael Anderson, is comforted by astronaut Carlos Noriega during the annual National Day of Remembrance ceremony in the Astronaut Memorial Tree Grove at the Johnson Space Center on Thursday, Jan. 27, 2011, in Houston. Johnson Space center director Michael L. Coats is at far left. Evelyn Husband-Thomas, widow of Columbia commander Rick Husband is at right. NASA holds the agency-wide Day of Remembrance every January to honor the fallen crews of Apollo 1 and space shuttles Challenger and Columbia. Friday, Jan. 28, will mark the 25th anniversary of the Challenger accident. less 
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Associated Press | Photo By Houston Chronicle, Smiley N. Pool
Thu, Jan 27, 2011 4:42 PM EST