Russia’s space agency says a Kazakh cosmonaut will fly to the International Space Station on 10-day mission in September, replacing British singer Sarah Brightman, who backed out of the mission in May.

Space station commander Scott Kelly and Kjell Lindgren carried out a tedious seven-hour 16-minute spacewalk Wednesday, installing cables needed for a new docking mechanism, mounting insulation panels on a physics experiment to improve cooling and lubricating the latching mechanism of the station’s robot arm.

Japan’s Kounotori 6 cargo carrier will get a 15-minute boost from a powerful H-2B rocket to send the supply ship and its 4.5 tons of provisions and experiments on a four-day pursuit of the International Space Station.