NASA - National Aeronautics and Space Administration

STS-127/Endeavour
Launch Date: July 11
Launch Time: 7:39 p.m. EDT

Take one space shuttle, seven highly trained astronauts, tons of equipment, and one legendary orbiting telescope and you have the 5.3 million-mile odyssey that was Hubble's final servicing mission.

Tool designers at NASA's Goddard Space Flight Center had to invent several new instruments for the STS-125 mission.

Engineers spent two years designing and building what is suddenly the most famous treadmill in the world - or above it.