Russian cosmonaut Oleg Kononenko performs a spacewalk outside the International Space Station on Tuesday. Kononenko and Sergey Prokopyev are inspecting a section where a mysterious leak appeared on Aug. 30.
Russian cosmonaut Oleg Kononenko performs a spacewalk outside the International Space Station on Tuesday. Kononenko and Sergey Prokopyev are inspecting a section where a mysterious leak appeared on Aug. 30.