For the first lunar-landing mission, I was assigned to the 7:00 P.M. to 7:00 A.M. shift.Usually I would take my time walking from the warm, humid parking lot into the artificially bright and cold transcription room where typewriter keys clacked like chattering teeth. There, a weary day-shift editor would hand over his head-phones, mumble his goodbyes, and leave. On one particular July night, however, things were distinctly different.