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ESA/NASA complete ISS spacewalk to install first new solar array
Two astronauts went outside the International Space Station (ISS) to complete installation of the first of six new Boeing-built solar arrays — part of a program to increase the station's electrical power generation capacity as its science and research demands increase and future expansion plans continue.
The Extravehicular Activity (EVA) – officially known as US EVA-75 – began at 11:42 UTC / 07:42 EDT when Thomas Pesquet from the European Space Agency (ESA) and Shane Kimbrough from NASA took their spacesuits to battery power before exiting the Quest Airlock to begin their work.
The eight original Solar Array Wings (SAWs) on the ISS, which each produce around 30 kilowatts (kW) of power for a total of about 250kW are beginning to show signs of degradation, with the oldest array now having been in space since 2000 when the P6 truss and associated arrays was delivered to the station by Shuttle Endeavour's STS-97 crew.
With over 20 years of use, and normal degradation of solar arrays, the eight SAWs now only produce around 160kW of power – against a backdrop of rising power demands from the station's increasing users.
The new arrays will bring it back up to 215 kW.
Future expansion plans? I thought it was still at risk of being deorbited after 2030.
(Score: 0) by Anonymous Coward on Monday June 21 2021, @02:59PM
MIR was not so much of a death trap except for that massive collision with their autonomous Progress. And a fire problem.
https://en.wikipedia.org/wiki/Mir#Safety_aspects [wikipedia.org]
So, 5 years turned to 15 years. ISS is seems to be designed for 15 years. So, probably de-orbit will be around 2045 and by then we can expect fleets of 1000s of Starships heading for Mars.
https://space.stackexchange.com/questions/5861/what-is-the-theoretical-life-of-the-iss [stackexchange.com]
https://futurism.com/the-byte/elon-musk-mars-city-1000-starship [futurism.com]