| File photo of 'Discovery' performing flyaround of | | | | if one of the valves broke during launch.Discovery |
| International Space Station after undockingThe U.S. | | | | and its seven-member crew are to deliver the last |
| space agency NASA says it will delay next week's | | | | set of solar wings to the International Space Station, |
| scheduled launch of the space shuttle Discovery to | | | | as well as a new member for the orbital outpost's |
| run tests on a newly installed set of fuel valves.The | | | | permanent crew.NASA engineers are also analyzing |
| valves control the flow of hydrogen fuel from the | | | | the impact of excessive vibrations during a brief |
| shuttle engines to the external fuel tank. The new | | | | engine firing on the International Space Station last |
| valves were installed on Discovery after a small piece | | | | month. The vibrations resulted from faulty commands |
| broke off a valve during the November launch of | | | | sent up to the ISS by Russian flight controllers. The |
| space shuttle Endeavour. NASA officials say it is | | | | ISS engines were fired to raise the space station's |
| postponing the flight until at least February 19 to | | | | orbit. Some information for this report was provided |
| determine if the shuttle could sustain serious damage | | | | by AFP, AP and Reuters. |