61.   A series of tests must be conducted over the next few weeks before the robot arm is commanded to climb onto the platform for a ride.

62.   A plan was being considered for the crew to knock it off with the shuttle robot arm.

63.   A short circuit knocked out a camera on the end of the robot arm Saturday.

64.   A pair of spacewalking astronauts went out Tuesday to bolt a new work platform to the international space station for a traveling robot arm.

65.   A third and final spacewalk is scheduled for Thursday, to replace a wrist joint in the robot arm.

66.   Astronaut Janice Voss reached out with the shuttle robot arm and grabbed the boxlike satellite as Discovery sidled up to it.

67.   Astronauts have attached a new work platform to the international space station for a traveling robot arm.

68.   Both robot arms, the one on Atlantis and the even bigger one on Alpha, will be needed for the installation.

69.   But Endeavour, their ride home, remained on the ground an extra month so that the shuttle astronauts could train to repair the robot arm.

70.   But the schedule could be thrown off due to technical glitches in operating systems for a robot arm installed last month.