James Lovell, Jack Swigert and Fred Haise were the astronauts on the Apollo 13 mission. The Apollo 13 spacecraft was launched on April 11, 1970 for a mission on the moon.
The seventh manned mission in the Apollo space program, Apollo 13 was intended to land on the moon two days after its launch, according to Wikipedia. This, however, didn't happen, due to an explosion of an oxygen tank which crippled the service module. This forced the crew to shut off most of the electrical equipment on board to conserve battery power. Despite this, and the related challenges, Apollo 13 returned to Earth safely on April 17, 1970.