Cosmonauts Move Roscosmos Radiator and Complete Spacewalk

Cosmonauts Sergey Prokopyev and Dmitri Petelin work outside the space station during a spacewalk today to move a radiator from the Rassvet module to the Nauka module. Credit: NASA TV
Cosmonauts Sergey Prokopyev and Dmitri Petelin work outside the space station during a spacewalk today to move a radiator from the Rassvet module to the Nauka module. Credit: NASA TV

Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin concluded their spacewalk on Tuesday, April 19, at 5:35 a.m. EDT after seven hours and 55 minutes.

Prokopyev and Petelin completed their major objectives, which included relocating a radiator from the Rassvet module to the Nauka science module with assistance from European robotic arm operator cosmonaut Andrey Fedyaev.

This was the fourth spacewalk in Prokopyev’s career, and the second for Petelin. It is the third spacewalk at the station in 2023 and the 260th spacewalk for space station assembly, maintenance, and upgrades.

The two Roscosmos cosmonauts will also conduct a spacewalk on Tuesday, April 25, to relocate an experiment airlock from Rassvet to Nauka.

An additional spacewalk is planned on Thursday, May 4, to deploy the radiator on Nauka and connect mechanical, electrical, and hydraulic lines.


Learn more about station activities by following the space station blog@space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.

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