Cosmonaut outside the Russian module of the International Space Station
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Cosmonauts on six-hour space walk

Cosmonauts based on the International Space Station are installing laser communication equipment and replacing experiments on the Zvesda module during a six-hour space walk.

Sergei Volkov has made two previous space walks, but this is the first for his colleague Alexander Samokutyaev.

The pair will also collect an antenna and release a small radio-transmitting satellite, a student-built experiment, while outside the station.

Space shuttle timeline

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