|
|
|
-----------------
|
|
|
|
|
|
|
|
|
|
|
|
-----------------
|
|
|
|
|
|
|
|
|
|
Spacewalkers find problem at ISS
Mon, 29 Oct 2007 12:27:29
|
|
US astronauts have detected metal shavings in a joint that is needed to turn a set of solar power panels during an ISS spacewalk.
NASA astronauts found problem with one of the mechanisms supporting a key energy unit of the International Space Station (ISS) on Sunday.
"The joint has been showing some increased friction lately, and engineers are analyzing potential causes," the National Aeronautics and Space Administration said in a statement.
The second spacewalk started at 0932 GMT and finished at 1605 GMT, with space shuttle Discovery astronauts Tani and Scott Parazynski removing bolts in preparation for the installation Tuesday of a truss that will support a set of the station's key solar panels.
Over the past two months, space station flight controllers have been tracking subtle problems with the joint's performance, such as abnormal vibrations and elevated power signatures.
The 100-billion-dollar space station, which is due to be completed within three years, is supported by 16 countries. The station plays a key role in the US program of sending a manned mission to Mars.
RZS/BGH
|
|
|
|
|
|
|