NASA flight director on Apollo 13 mission: 'We thought maybe we had lost them'

EXCLUSIVE: IT'S ONE of the most famous phrases in the solar system: "Houston, we have a problem." It was first uttered by astronaut Jack Swigert on April 13, 1970, 55 hours, 55 minutes and four seconds into the flight of Apollo 13 - after an exploding oxygen tank destroyed one of the fuel cells on the spacecraft.