Why are the Russian Astronauts doing another spacewalk this week?
The main purpose of this spacewalk was to install hardware in preparation for a new air lock to be installed next year. They also retrieved an existing external experiment, installed a new scientific experiment on the outer hull of the station, and repaired a ham radio antenna. This spacewalk was much easier than the previous spacewalk, which included removing an explosive bolt from the soyuz escape capsule. You can read more at the link below. I hope this helps.
