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Spacesuit issues force astronauts to postpone their spacewalk preparations.

The malfunction of pumps in one of the spacesuits’ cooling systems has caused cosmonauts Sergey Prokopyev and Dmitry Petelin to postpone their spacewalk, Roscosmos reported on Friday.

A decision has been made to halt the exit preparations while the causes are being investigated, according to a statement from Roscosmos. “An abnormal operation of pumps in the cooling system of one of the spacesuits has been found in the process of preparing the spacesuits for the extravehicular activity,” the statement read.

At 2:20 pm, the spacewalk was scheduled to start. Russian time.

The extravehicular activity slated for November 25 was going to be Prokopyev’s fourth spacewalk and Petelin’s second.

The cosmonauts were scheduled to use the ERA robotic arm to transfer a heat exchanger from the Rassvet mini-research module to the Nauka multipurpose lab on the orbiting outpost’s Russian portion during their spacewalk.

In order to keep the Nauka multifunctional laboratory module from overheating during scientific research, a heat exchanger is required.

After the reasons for the postponed extravehicular activity are investigated, the next spacewalk’s date will be determined, according to Roscosmos.

Prokopyev and Petelin worked in Orlan-ISS spacesuits No. 5 with red stripes and No. 4 with blue stripes during the scheduled six hours, 37-minute spacewalk, which was canceled.

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