For 30 years, every time a space shuttle has flown, so has OV-095, the ghost orbiter. You've probably never heard of it, but in its way it has been as important as Atlantis or Endeavour.
It sits inside a nondescript building at the Johnson Space Center here in Houston. The group that runs it has an acronym -- SAIL, short for Shuttle Avionics Integration Laboratory.
OV-095 has never left the ground and never will, but it has the same cockpit, the same computers and the same wiring as the...Full Story