Mission Specialist Rick Linnehan works on the Canadian robot, named Dextre, 13 March 2008

The crews of the U.S. space shuttle Endeavour and International Space Station restored critical power to a Canadian-built robot late Friday.

Astronauts sent power to the robot named Dextre through the station's Canadian-built robotic arm.  Ground controllers could not get electricity to Dextre after it was removed from Endeavour's cargo bay during a spacewalk Thursday.  Officials with the U.S. space agency NASA say engineers discovered a design flaw in an electrical circuit in the $200 million robot. 

Before fixing the problem with the robot, the crews entered a new Japanese-built module that was attached to the ISS Thursday.  The module will serve as the storage compartment for the three-piece Kibo laboratory.  The main segment will be delivered during a shuttle flight in May. 

The crews are preparing for another spacewalk scheduled for Saturday.  It will be the second of five planned spacewalks during Endeavour's 12-day mission at the orbital outpost. 

Some information for this report was provided by AFP, and Reuters.