Interactive feature from 2012 commemorating the 50th anniversary of the first American in orbit.
Each year, we honor the Apollo 1, Challenger and Columbia crews and other members of the NASA family who lost their lives supporting NASA's mission.
In 2012, NASA continued to implement America's ambitious space exploration program, landing the most sophisticated rover on the surface of Mars, carrying out the first-ever commercial mission to the International Space Station and advancing the systems needed to send humans deeper into space.
You are invited to send holiday greetings to the crew up on the International Space Station during this holiday season.
Commander Gene Cernan and scientist-astronaut Jack Schmitt explored the moon's Taurus-Littrow region with Ron Evans orbiting overhead, during the final mission of the Apollo program in 1972.