"Houston, we have a problem." They are the most famous words ever uttered in the history of space travel. One single sentence, five small words, but they signal what could have been the greatest disaster in the history of NASA.
It was April 13, 1970; astronauts Jim Lovell, John Swigert, and Fred Haise were in the lunar module - Apollo 13. They were two hundred thousand miles from Earth, 5/6th of the way to the moon, 55 hours into their flight when disaster struck.
A mysterious explosion rocked the ship and left it less than two hours from becoming a permanent tomb in space. The crew watched in horror as the cockpit grew darker, the air grew thinner and instruments went blank. Then Captain Jim Lovell got on the radio and uttered those famous words - "Houston, We Have a Problem." Yet these…