11.   After an initial look at telemetry data, officials at mission control suspect that a computer part malfunctioned.

12.   But Johnson Space Center, mission control for manned flights, is nevertheless designing a rival approach.

13.   But the astronauts aboard the space station and NASA engineers at mission control noticed a problem when the railcar approached a work site.

14.   But the erratic Mir complicated things by losing radio contact with mission control for nearly a full day.

15.   Final alignment was off by about an inch, but mission control told the astronauts that it was good enough and to go to the next task.

16.   Flight engineers at mission control have already said that they could find no fault with any of the computer equipment needed for that procedure.

17.   For fun, Gore and Chernomyrdin, both space freaks, will watch from mission control the scheduled docking of the U.S. shuttle with the Russian space station Mir.

18.   Human stress on Skylab and on Mir, the Russian space station, contributed to problems between crew members and mission control.

19.   In Houston, mission control starts wondering.

20.   Instead, there was a silence that continued through late Sunday afternoon, with NASA mission control and Wind River officials playing a tense waiting game.