U.S. and Canadian Astronauts Wrap Up Power Upgrades Spacewalk

ISS – Expedition 59 Mission patch / EVA – Extra Vehicular Activities patch.

April 8, 2019

Expedition 59 Flight Engineers Anne McClain of NASA and David Saint-Jacques of the Canadian Space Agency concluded their spacewalk at 2 p.m. EDT. During the six-and-a-half-hour spacewalk, the two astronauts successfully established a redundant path of power to the Canadian-built robotic arm, known as Canadarm2, and installed cables to provide for more expansive wireless communications coverage outside the orbital complex, as well as for enhanced hardwired computer network capability. The duo also relocated an adapter plate from the first spacewalk in preparation for future battery upgrade operations.

Image above: Astronauts Anne McClain (left) and David Saint-Jacques work outside the International Space Station during their spacewalk on April 8, 2019. Image Credit: NASA TV.

This was the third spacewalk in just under a month on the space station. The first two spacewalks installed powerful lithium-ion batteries for one pair of the station’s solar arrays. On March 22, the first spacewalk was completed by McClain and fellow NASA astronaut Nick Hague. On March 28, the second spacewalk was completed by Hague and NASA astronaut Christina Koch.

Image above: Expedition 59 Flight Engineers Anne McClain of NASA and David Saint-Jacques of the Canadian Space Agency. Image Credit: NASA.

– March 22 was the first spacewalk for NASA astronauts Hague and McClain. McClain became the 13th female spacewalker in history.

– March 29 also was the first spacewalk for NASA astronaut Christina Koch, who became the 14th female to complete a spacewalk.

– Saint-Jacques became the first Canadian Expedition astronaut to walk in space and the fourth Canadian astronaut to spacewalk overall.

– Space station crew members have conducted 216 spacewalks in support of assembly and maintenance of the orbiting laboratory. Spacewalkers have now spent a total of 56 days 10 hours and 53 minutes working outside the station.

Related articles:

Astronauts Conducting Third Spacewalk to Upgrade Station Power Systems
https://orbiterchspacenews.blogspot.com/2019/04/astronauts-conducting-third-spacewalk.html

NASA Astronauts Complete 215th Spacewalk at Station
https://orbiterchspacenews.blogspot.com/2019/03/nasa-astronauts-complete-215th.html

Spacewalk Reassignments: What’s the Deal?
https://orbiterchspacenews.blogspot.com/2019/03/spacewalk-reassignments-whats-deal.html

Related links:

Expedition 59: https://www.nasa.gov/mission_pages/station/expeditions/expedition59/index.html

Quest airlock: https://www.nasa.gov/mission_pages/station/structure/elements/joint-quest-airlock

Canadarm2 robotic arm: https://www.nasa.gov/mission_pages/station/structure/elements/mobile-servicing-system.html

Space Station Research and Technology: https://www.nasa.gov/mission_pages/station/research/index.html

International Space Station (ISS): https://www.nasa.gov/mission_pages/station/main/index.html

Images (mentioned), Text, Credits: NASA/Mark Garcia.

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