In space, there are few second chances. When something goes wrong, it's up to astronauts and Mission Control to come up with a solution together...and quickly. Witness some of the most unexpected accidents in the history of spaceflight, from Neil Armstrong's head-spinning flight aboard Gemini 8 to the 1997 air leak at the Russian space station Mir to the race to fix an ISS solar panel tear in 2007. Then see how quick thinking and human ingenuity--on the ground and hundreds of miles above the Earth--help keep emergencies from becoming disasters.