US astronauts were successful today, November 4,2007, in repairing a torn solar panel during an unprecedented, risky space walk to ensure an adequate power supply at the International Space Station. Astronaut Scott Parazynsky spent more than four hours attached to the end of a robotic boom knitting together the damaged panels with makeshift wire "cufflinks" to rectify the problems caused by a snagged wire when the panels unfurled.