The Apollo missions showed exact science at work. Each part needed to be close to perfection from start to finish. NASA succeeded with 1960s tools—a remarkable feat. Though it was still cutting-edge ...

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

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 ...