On Wednesday, September 5 Expedition 32 was conducting a 6 hour spacewalk to finish the installation of the MBSU (Main Bus Switching Unit). The walk was conducted by NASA Flight Engineer Sunita Williams and Japanese Aerospace Exploration Agency astronaut Aki Hoshide.
The original installation was delayed due to a possible misalignment and damage to threads where a bolt needed to be placed. They also installed a camera on the International Space Station robotic arm, Canadaarm 2.
The MBSU is a 236 unit that relays power from the stations solar arrays to the systems. The previous spacewalk on August 30th lasted 8 hours and 17 minutes, the third longest spacewalk in history. That spacewalk ended with those astronauts bolting the unit into place on the truss.
The spacewalk was the 165th in conjunction with space station assembly and maintenance.
It’s amazing everything they can do above the atmosphere. I get excited when NASA is busy because it shows that there is still hope to continue our exploration of the unknown.