Rand Ravich
After an explosion in space and subsequent two-minute radio-out period, two astronauts return home to their wives. Slightly it's revealed that they're not the same as they were.
A pair of shuttle astronauts leave their spacecraft to repair a satellite. There's an explosion. NASA loses contact for two minutes, but the both are rescued and safely returned to Earth. Eventually it becomes evident that neither of the astronauts is quite the same.