What began as a mission to land on the moon became history’s most harrowing space rescue after a technical failure forced the crew of Apollo 13 into a 200,000-mile race for survival.

Apollo 13 was supposed to be NASA’s third crewed mission to the surface of the moon, but nearly 56 hours into the flight, command module pilot John “Jack” Swigert radioed a troubling message to Mission Control: "OK, Houston, we've had a problem.