Stephen Feldman president of the Astronauts Memorial Foundation left.

Stephen Feldman, president of the Astronauts Memorial Foundation, left; Dr. June Scobee Rodgers, founding chair of the Challenger Center for Space Science Education and widow of space shuttle Challenger's STS-51L Commander Dick Scobee; Michael McCulley, former astronaut and chairman of the Astronauts Memorial Foundation; Bob Cabana, former astronaut and NASA Kennedy Space Center director; Rick Soria, 2009 Alan Shepard Technology in Education Award winner, and William Gerstenmaier, NASA Associate Administrator for Space Operations gather in front of the Space Mirror Memorial at the Kennedy Space Center Visitor Complex in Florida to honor the Challenger crew members who gave their lives for while furthering the cause of exploration and discovery. 2011 marks the 25th anniversary of the loss of Challenger, which broke apart over the Atlantic Ocean 73 seconds into flight on Jan. 28, 1986.

NASA/Jack Pfaller