Gene Kranz manned the Lunar Excursion Module in the spring of 1970
Ken Mattingly flew on the Apollo 12 mission in 1963.
Neil Armstrong walked on the moon in 1969.
Jim Swigert was unable to fly on the mission because he got the measles.
Jim Haise walked on the moon in 1970.
Over a thousand people worked to bring the astronauts home safely.
As Gene Krantz, the head of mission control, said, this was NASA's "finest moment".
The LEM was able to land on the moon, even though the command module was not.
Few people were killed in the explosion in space.
Apollo 13 was called a "successful failure" because they did not complete their mission, yet the astronauts all made it home safely.
This phrase is used to indicate that we should go to Houston to visit the NASA mission control to know what it was really like then.
It is used to say that NASA is experiencing another major problem with a ship.
It is said when bad weather is in the forecast.
People say this when they want to communicate that there is some major problem occurring.
It is said when a person wants to watch a movie.
Less than a week.
Approximately one day.
Only a few hours.
A damaged coil caused an explosion in one of the oxygen tanks during a routine procedure.
One of the astronauts, Fred Haise, because very ill.
Their heating unit was damaged and they were too cold.
They ran out of oxygen in the Command Module.
The LEM was unable to support all three astronauts.
NASA was afraid the astronauts might change their mind about going on such a dangerous mission if they could spend too much time with their families.
NASA did not want to risk the astronauts getting sick.
There was a chance of something illegal being smuggled onto the rocket and put the mission at risk.
One of the astronauts did not have any family to speak of and NASA did not want him to feel bad.