Roscosmos cosmonaut Sergey Prokopyev lays cable for the installation of the Icarus animal-tracking experiment on the Zvezda service module during a spacewalk that lasted 7 hours 46 minutes. Fellow cosmonaut Oleg Artemyev (out of frame) joined Prokopyev during the spacewalk which also saw the deployment of four nano-satellites and the retrieval of a materials exposure experiment on the Russian segment of the International Space Station.