Shuttle Astronauts Make Repairs to ISS in Final Spacewalk

Astronauts from the shuttle Endeavour began their fifth and final spacewalk outside the International Space Station on Monday.

American astronauts Tom Marshburn and Chrisopher Cassidy left the ISS at 7:33am EST and began a number of maintenance tasks, including folding up insulation that popped up from the Dextre manipulator. The manipulator is an extension of the ISS's Canadarm 2, which was designed and built in Canada.

They will also rearrange some power hookups, install video cameras and add more external storage capability. The spacewalk will last 6 and a half hours.