When an oxygen tank exploded aboard Apollo 13, 200,000 miles from Earth, Jim Lovell’s calm voice crackled over the radio: “Houston, we’ve had a problem.” It was April 1970, and the mission that was meant to land Lovell on the moon became a desperate fight for survival.

Once America's most experienced astronaut, Apollo 13's Jim Lovell, who died at 97, was the first to visit the moon twice.

Famed NASA astronaut Jim Lovell, who commanded the harrowing Apollo 13 mission that was forced to abandon a lunar landing attempt in 1970, has died. He was 97.