April 13 marks the day of one of the greatest success stories I can think of that began with the unthinkable. The crew of Apollo 13 was completing a routine check when, a day shy of walking on the moon, an oxygen tank exploded on the spacecraft and forced the men into what seemed an impossible race to get back to earth safely.
In one of the scenes I most remember from the movie, several NASA engineers and a doctor rush to flight director Gene Kranz (or Ed Harris if you’re picturing this in your mind) to inform him that the crew’s CO2 levels were dangerously high.
