Astronauts from NASA tie spacewalk to EVA to prepare ISS upgrades

On 21 July 2020, two astronauts of NASA coupled a spacewalk record while preparing International Space Station for potential updates.

Bob Behnken, who disembarked at space station on SpaceX Crew Dragon DM-2 spaceship in May and Expedition 63 leader Chris Cassidy, carried out their fourth spacewalk jointly on Tuesday. The five hours and thirty minutes expedition manifested the tenth extravehicular movement, or EVA, by two crewmates coupling the record for the majority of spacewalks that gets to be performed by an American, as two additional astronauts also accomplished it. 

Swiftly realizing their first undertakings, the installation of an instrument kit at the foot of the station’s Canadarm2 automatic arm and photographing their workstation from the last spacewalk to improve the batteries for the power system of the station. Both Behnken and Cassidy then operated on eliminating two gadgets called “H-Fixtures” that helped in holding the solar arrays of the station before the launching of the panels. 

Behnken had tried to get rid of one of the meetings on a previous spacewalk, however, failed to pry it loose. For EVA, astronauts were organized with a mixture of tools, comprising a long-handled wrench, a power drill and a tape-wrapped plier, and also a 3D printed wedge on board space station for the duty.

With the job done two hours into spacewalk, the astronauts packed their instruments, relocated a moveable foot restraint, and rearranged their tethers before moving in the station’s Tranquility Node3 to commence arranging the module for the outpost first commercial airlock installation.

Bishop airlock of Nanoracks that gets its name from diagonally-moving chess bits will boost the capacity of the place to position commercial CubeSats among other tiny satellites. The module shaped like a bell jar is scheduled for a send-off on the SpaceX Dragon cargo spaceship later in the current year.

Both Cassidy and Behnken operated at Tranquility’s end cone, constituting it for extra Bishop Airlock. Both astronauts initially removed the pressurized mating adapter envelop that had been mounted to replace a misplaced thermal guard. 

Both Cassidy and Behnken also coupled back three thermal envelopes and removed a little patch of debris. Proceeding on to their last assignments, Behnken and Cassidy re-routed wires for the new wireless data method and got rid of a filter from the camera lens.