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Metal from space junk polluting the upper atmosphere
- h2odragon 2y agoApril 2021: https://www.space.com/extraterrestrial-dust-falls-on-earth https://www.space.com/extraterrestrial-dust-falls-on-earth > Every year 5,200 tons (4,700 metric tons) of interplanetary dust particles reach the Earth's surface, I don't think we launch that much a year yet.