Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin conducted a spacewalk outside the International Space Station May 12 to assist in the deployment and activation of a radiator on the Nauka Multipurpose Laboratory Module that was installed in April. It was the 263rd spacewalk in support of space station assembly, maintenance and upgrades, the 6th for Prokopyev and the 4th for Petelin.
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Credit: YouTube/NASA Johnson
