ISS - Expedition 61 Mission patch / EVA - Extra Vehicular Activities patch.
January 20, 2020
At 1:33 p.m. EST, Expedition 61 Flight Engineers Jessica Meir and Christina Koch of NASA concluded their third spacewalk together. During the six hour and 58-minute spacewalk, the two NASA astronauts successfully completed the battery upgrade for one channel on one pair of the station’s solar arrays.
Today’s work included removing the last two nickel-hydrogen batteries from this area of the station’s backbone near the port solar array and moving them to an external platform. The batteries will be stored there until they can be disposed of in the next Japanese HTV cargo spacecraft after it delivers tons of supplies to the space station later this year. Meir and Koch also installed the sixth and final new lithium-ion battery, and ground controllers verified the new batteries powered up successfully to provide an improved and more efficient power capacity for station operations.
Image above: Astronauts Jessica Meir and Christina Koch of NASA prepare for Monday's spacewalk to replace batteries on the International Space Station. Image Credit: NASA.
The spacewalkers concluded their work by paying tribute to Dr. Martin Luther King, Jr. Meir said he was a personal hero and looking down on planet Earth reminded her of his words: “We may have all come on different ships, but we’re in the same boat now.” Koch noted how much is owed to those who worked for civil rights and inclusion and “paved the way for not only us, but so many who have a dream.”
This was the second spacewalk outside the station in 2020. Space station crew members have now conducted 226 spacewalks in support of assembly and maintenance of the orbiting laboratory. Spacewalkers have spent a total of 59 days, 6 hours, and 10 minutes working outside the station. It is the third time all spacewalkers have been women and the 45th spacewalk to include women.
Image above: NASA astronaut Jessica Meir enters the Quest airlock to complete a spacewalk after swapping batteries on the International Space Station that store and distribute solar power collected for the solar arrays. Image Credit: NASA TV.
NASA astronaut Andrew Morgan and space station Commander Luca Parmitano of ESA (European Space Agency) will conduct the next spacewalk Saturday, Jan. 25, to finish installing the Alpha Magnetic Spectrometer’s (AMS) new cooling apparatus and lines and verify they are ready for use. Morgan and Parmitano began that work during three spacewalks in November and December 2019.
Today’s spacewalk was the third for Meir, who now has spent a total of 21 hours and 44 minutes spacewalking, and the sixth for Koch for a total of 42 hours and 15 minutes. Koch is third place behind Peggy Whitson and Suni Williams for cumulative time by a female spacewalker and 21st on the all-time spacewalk list for aggregate time.
Image Credit: NASA TV
Koch arrived to the orbiting laboratory in March 2019 and is nearing the end of an extended duration mission. She holds the record for longest single spaceflight by a woman and will return to Earth on Feb. 6. Her extended mission provides researchers the opportunity to observe effects of long-duration spaceflight on a woman to prepare for human missions to the Moon and Mars. Meir arrived in Sept. 2019 and is due to return in April.
Related article:
Astronauts Wrap Up First Spacewalk of 2020
https://orbiterchspacenews.blogspot.com/2020/01/astronauts-wrap-up-first-spacewalk-of.html
Related links:
Expedition 61: https://www.nasa.gov/mission_pages/station/expeditions/expedition61/index.html
Alpha Magnetic Spectrometer (AMS): https://www.nasa.gov/feature/extending-science-in-the-search-for-the-origin-of-the-cosmos
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.
Best regards, Orbiter.ch
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