Astronauts Joe Acaba and Randy Bresnik are seen working outside the International Space Station during the last in a series of October spacewalks on Oct. 20. Making the most of a 6 hour and 49 minute spacewalk, they installed a new camera system on the Canadarm2 robotic arm, an HD camera on the side of the station and replaced a fuse on the Dextre robotic arm extension. Take a look: http://go.nasa.gov/2zYCniq