Dr. June Scobee Rodgers pay their respects to the space shuttle Challenger crew members in Florida.

Dr. June Scobee Rodgers, the founding chair of the Challenger Center for Space Science Education and widow of space shuttle Challenger's STS-51L Commander Dick Scobee, and NASA Associate Administrator for Space Operations William Gerstenmaier pay their respects to the space shuttle Challenger crew members who gave their lives for while furthering the cause of exploration and discovery at the foot of the Space Mirror Memorial at the Kennedy Space Center Visitor Complex in Florida. 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