Post B612VHuitPgmo9UWfo by fj@mastodon.social
 (DIR) More posts by fj@mastodon.social
 (DIR) Post #B612VHuitPgmo9UWfo by fj@mastodon.social
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       Proposal: A global tax, where you pay per kilogram of junk you burn up in the stratosphere.
       
 (DIR) Post #B612VI9c03bBYKSPse by fj@mastodon.social
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       7 Starlink satellites burned up in the higher atmosphere yesterday. Unlike what some are saying, these are satellites that were already planned to re-enter ahead of the solar storm and were launched in 2020/2021.
       
 (DIR) Post #B612VIKFMW6c5JQuSO by fj@mastodon.social
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       #Starlink and other satellites burning up in the atmosphere has caused a lot of metal pollution.A Japanese company offers satellites made out of Magnolia wood, which incinerate completely, with only water vapour and CO2 residues. An experimental satellite was handed over to JAXA for launch in November.https://www.nature.com/articles/d41586-024-01456-z
       
 (DIR) Post #B612VIcKHIZEzNtLdY by fj@mastodon.social
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       LignoSat has reached orbit! More wood in satellites please.https://www.dw.com/en/worlds-first-wooden-satellite-launched-into-space/a-70691359
       
 (DIR) Post #B612VInfb7dpYZCPJo by fj@mastodon.social
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       "We now have enough Starlink reentries to use the Kaplan-Meier survival analysis estimator to determine the median Starlink operational lifetime: 5.3 years.  This mixes together V1 and V2M Starlinks."@planet4589
       
 (DIR) Post #B612VJ1UlihUFRfRrs by fj@mastodon.social
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       "Falling satellites in 2022 produced about 17 tons of alumina, a 30% increase over natural levels. Fully realized “mega-constellations” of 550-pound satellites, which might be 30% aluminum, could add 360 tons a year, likely enough to harm the ozone layer.”https://www.bloomberg.com/graphics/2025-space-orbit-satellites-pollution/
       
 (DIR) Post #B612VJEbyxByu7nvJQ by fj@mastodon.social
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       “472 Starlinks were burned up in the atmosphere in Dec-May.  Assuming each satellite is 800kg, and 50% aluminum by mass, that's 1 ton of aluminum PER DAY.  The natural infall rate of aluminum from meteoroids is 0.3 tons per day.  Starlink has been ~3x that, for the last 6 months.”https://mastodon.social/@sundogplanets/114789679793357277
       
 (DIR) Post #B612VJS5Ary3Zu6gJE by fj@mastodon.social
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       RE: https://mastodon.social/@sundogplanets/116524040756148105If you liked this thread, you'll like this brilliant one by @sundogplanetsRT: https://mastodon.social/users/sundogplanets/statuses/116524040756148105