@COMPMEMO "CHRISTA MCAULIFFE AND THE CHALLENGER WELCOME THE CREW OF THE SPACE SHUTTLE COLUMBIA."

"We have a go for auto sequence start. Columbia's forward comput- ers now taking over primary control of critical vehicle functions through lift-off."

T-MINUS 30 SECONDS AND COUNTING

"What the hell is that?" Mission Specialist Hawkins said to the technician who was monitoring the auto-correlation noise reduc- tion systems needed to communicate with the astronauts once in space.

TWENTY NINE

"What?" Sam Broadbent took off his earpiece.

TWENTY EIGHT

"Look at that." Hawkins pointed at the central monitor.

TWENTY SEVEN

"What does that mean, it's not in the book?"