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Japan to launch world’s first wooden satellite to combat space pollution
(www.theguardian.com)
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this post was submitted on 17 Feb 2024
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Yeah, this is to reduce atmospheric pollution when satellites deorbit, which is a separate problem from ensuring satellites deorbit in the first place. I hadn't heard that being an issue, but can see how it could be once the first generation of megaconstellation satellites (Starlink, Kuiper, and Guowang) reach the end of their life.
Incidentally Japan + Rocket Lab just launched a spacecraft to collect data for future orbital rendezvous and deorbit missions.
Looks like the research into upper atmosphere metallic contamination hasn't been studied much yet, they just know it's becoming more prevalent, but don't know that problems that creates yet. https://www.pnas.org/doi/full/10.1073/pnas.2313374120