31.   He based his speculation, in part, on observations radioed to ground controllers Sunday night by Columbia astronaut Jeff Hoffman.

32.   He said he enjoyed seeing facial expressions, hand motions and lip movements while talking to ground controllers.

33.   If a problem arose with the main spacecraft, the tiny satellite buddy could detach and examine the larger ship to help ground controllers diagnose and fix the difficulty.

34.   If NASA decides it must ditch the observatory, ground controllers will select a target in the Pacific and alert maritime and aviation interests of the re-entry.

35.   In addition to the computer problem Monday, the Mir crew informed Russian ground controllers of a small gray-brown cloud of droplets apparently leaking from the station.

36.   Instead, an investigations panel recommended simply marking the observation post more clearly and requiring ground controllers to wear flak vests.

37.   Investigators said Lewis spun out of control and lost power because of flawed control system design and inadequate monitoring by ground controllers.

38.   It soon will begin using Predator surveillance aircraft, computer-controlled drones that transmit live images to ground controllers.

39.   Meanwhile, ground controllers said the amount of propellant being used by Atlantis to perform maneuvers by the two linked spacecraft was higher than expected.

40.   Mission commander Steve Oswald assured ground controllers Friday that Endeavour should have no difficulty meeting its goal of becoming the longest shuttle flight ever.