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When old satellites fall into Earth’s atmosphere and burn up, they leave behind tiny particles of aluminum oxide, which eat away at Earth’s protective ozone layer. A new study finds that these oxides have increased 8-fold between 2016 and 2022 and will continue to accumulate as the number of low-Earth-orbit satellites skyrockets.
How much do you think (micro)metoerites bring in daily?
https://phys.org/news/2024-06-satellite-megaconstellations-jeopardize-recovery-ozone.html
Those micrometeors aren’t mostly aluminium.