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by zamadatix
850 days ago
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I'm with you it seems a little silly but looking into the question: NASA https://science.nasa.gov/solar-system/meteors-meteorites/ gives the figure 44,000 kg of material falls to the Earth each day and that "Almost all" is vaporized in the atmosphere. A satellite can range from micro (~100 kg) to intermediate (~3000 kg) to extra heavy (>7000 kg). For reference Starlink started ~250 kg and the v2 are ~1250 kg. On average there should be ~10 deorbits per day at the current point, so safe to say at least an additional 25% over normal already. The confusion that's left is how much of the material that naturally falls to the earth each day is also consider "polluting" and whether tons of such material is noteworthy pollution to be concerned about in spaceflight (for comparison global CO2 emissions are ~36,820,000,000,000 kg per year and a liter different in rocket fuel usage probably a lot larger pollution difference). |
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