NASA released an interactive, 3-D photographic collection of the International Space Station and a model of the next Mars rover.
"I think the most exciting part is being able to use the things that I’ve been working towards for a very long period of time."
"I think that it, it’s normal for humans to feel the need to explore the unknown, to do something that has never been done before. "
"Without a doubt I was inspired by the early American space program, in particular the American Apollo missions."
"I was always very interested in combining operational tasks and engineering tasks. That’s why I became an engineer but also a pilot and a test pilot."
Engineers spent two years designing and building what is suddenly the most famous treadmill in the world - or above it.
The Astronaut Hall of Fame class of 2009 includes three history making shuttle fliers.
The astronauts of Atlantis will mark their mission with a wide array of commemorative items they take into space.