Cosmonauts Overcome Coolant Mishap: Navigating Challenges in the Void of Space

Oleg Kononenko and Nikolai Chub

Flight Engineers Oleg Kononenko (left) and Nikolai Chub (right) of Roscosmos. Credit: NASA

Roscosmos cosmonauts completed a spacewalk on October 25, completing important tasks including the Nauka module radiator inspection and nanosatellite release. Despite facing a coolant leak and partial solar sail deployment issues, the mission was concluded successfully.

Roscosmos cosmonauts Oleg Kononenko and Nikolai Chub concluded their spacewalk on October 25 at 9:30 p.m. EDT after 7 hours and 41 minutes.

Key Activities During the Spacewalk

During the spacewalk, Kononenko and Chub inspected and photographed an external backup radiator on the Nauka multipurpose laboratory module, as well as isolated the radiator from Nauka’s cooling system. During the radiator inspection, a bubble of coolant was released at the leak site. This necessitated the cosmonauts to wipe down their suits before proceeding.

Oleg Kononenko and Nikolai Chub SpacewalkReference

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