Cosmonauts Deploy Radiator and Complete Spacewalk

Spacewalkers Sergey Prokopyev and Dmitri Petelin work outside the Nauka science module to deploy a radiator and install gap spanners on the European robotic arm. Credit: NASA TV
Spacewalkers Sergey Prokopyev and Dmitri Petelin work outside the Nauka science module to deploy a radiator and install gap spanners on the European robotic arm. Credit: NASA TV

Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin concluded their spacewalk May 12 at 5:01 p.m. EDT after 5 hours and 14 minutes.

Prokopyev and Petelin completed their major objectives, which included deploying a radiator on the International Space Station’s Nauka science module, connecting electrical, mechanical, and hydraulic lines, and filling a pair of cooling loops with coolant.

This was the sixth spacewalk in Prokopyev’s career, and the fourth for Petelin. It was the sixth spacewalk at the station in 2023 and the 263rd spacewalk for space station assembly, maintenance, and upgrades.


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