July 20, 2009 4:00 AM PDT
Beset by an accident a little over two days and 200,000 miles after liftoff in April 1970, the Apollo 13 crew was unable to make a moon landing. An oxygen tank blew up in the service module, crippling a number of critical life support system, destabilizing the navigation system, and putting the three-man crew at great risk. Here, John Swigert, the pilot of the command module, and another astronaut handle hoses that were part of the jury-rigged setup put into place to keep things going.
Photo by NASA
Caption by Jonathan Skillings