Astronauts Fix International Space Station Cooling Hardware During Spacewalk

Mindy Sparks
May 17, 2018

Two NASA astronauts are finalizing their preparations ahead of Wednesday morning's spacewalk to swap thermal control gear outside the International Space Station.

A pair of NASA astronauts aboard the International Space Station are embarking on a six-and-a-half-hour spacewalk today to upgrade and fix the orbiting outpost.

This is the 210th spacewalk at the ISS since 1998.

According to information provided by NASA, the astronauts were fixing the station's pump flow control subassembly, which is one of the instruments used to regulate the station's flow of ammonia coolant.

The spacewalkers will remove a failed PFCS and return it to the spare parts depot. The primary objectives are to finish upgrading cooling system hardware and install new and updated communications equipment for future dockings of commercial crew spacecraft. They'll also replace a camera system on the Destiny Laboratory and a communications receiver.

The astronauts taking part in the NASA space walk are no strangers to the task, with this being the eighth of Feustel's walks as well as the fourth of Arnold's. With SpaceX quickly becoming a force to be reckoned with, the ability to better support their ships and Boeing's ships will be a welcome change for everyone involved.

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