"That was a long but rewarding day. My crewmate took this shot, thanks Butch!” #Reid Photo credit: 265B5555 NASA/Butch Wilmore NASA Astronauts Reid Wiseman and Butch Wilmore wrapped up a 6-hour, 34-minute spacewalk at 2:50 p.m. EDT yesterday, Wednesday October 15 2014. This was spacewalk was the 183rd in support of station assembly and maintenance. This was the first spacewalk for Wilmore. It was the second spacewalk for Wiseman, who joined ESA Flight Engineer Alexander Gerst of the European Space Agency for a 6-hour, 13-minute spacewalk on October 7 2014. The highest priority task of the spacewalk was to replace a failed power regulator, known as a sequential shunt unit, which failed in May. The unit regulates power from the 3A solar array. The station has since operated normally on seven of its eight power channels, but replacing the unit provides the station team with more flexibility and redundancy in managing the primary power system and assures enough power for all the plan...