
Russian spacewalker Pyotr Dubrov is pictured during a spacewalk to begin outfitting Russia's Nauka multipurpose laboratory module.

Russian spacewalker Pyotr Dubrov is pictured during a spacewalk to begin outfitting Russia's Nauka multipurpose laboratory module.

Russian spacewalkers Oleg Novitskiy and Pyotr Dubrov are pictured during a spacewalk to begin outfitting Russia's Nauka multipurpose laboratory module.

Russian spacewalkers Oleg Novitskiy and Pyotr Dubrov are pictured during a spacewalk to begin outfitting Russia's Nauka multipurpose laboratory module.

Spacewalkers Thomas Pesquet and Akihiko Hoshide work to install a modification kit on the International Space Station's Port-4 truss structure.

Spacewalkers Thomas Pesquet and Akihiko Hoshide work to install a modification kit on the International Space Station's Port-4 truss structure.

The space station's Russian segment, including the Nauka multipurpose laboratory module, figures prominently in this photograph.

Astronaut Akihiko Hoshide is pictured during a spacewalk to install a modification kit on the International Space Station's Port-4 truss…

Astronaut Akihiko Hoshide is pictured during a spacewalk to install a modification kit on the International Space Station's Port-4 truss…

Astronaut Akihiko Hoshide is pictured during a spacewalk to install a modification kit on the International Space Station's Port-4 truss…