--- title: Plasma Tunnels Reveal How Dying Satellites Really Fall... description: German researchers at the University of Stuttgart are using plasma wind tunnels to simulate how satellites burn up during atmospheric reentry, revealing... canonical: https://daily.dev/posts/plasma-tunnels-reveal-how-dying-satellites-really-fall-to-earth-ie4zufyt2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Plasma Tunnels Reveal How Dying Satellites Really Fall to Earth | daily.dev og:description: German researchers at the University of Stuttgart are using plasma wind tunnels to simulate how satellites burn up during atmospheric reentry, revealing... og:url: https://daily.dev/posts/plasma-tunnels-reveal-how-dying-satellites-really-fall-to-earth-ie4zufyt2 og:image: https://api.daily.dev/og/posts/iE4zUfyt2.png og:image:alt: Plasma Tunnels Reveal How Dying Satellites Really Fall to Earth og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Plasma Tunnels Reveal How Dying Satellites Really Fall to Earth **[IEEE Spectrum](https://daily.dev/sources/ieeespectrum)** · 9 min read · 0 upvotes · 0 comments ## Summary German researchers at the University of Stuttgart are using plasma wind tunnels to simulate how satellites burn up during atmospheric reentry, revealing significant knowledge gaps and environmental concerns. With 18,000+ satellites currently in orbit and companies like SpaceX and Blue Origin planning hundreds of thousands more, the volume of space debris reentering Earth's atmosphere is set to grow dramatically. Key findings include: aluminum oxide ash from incinerated satellites may deplete ozone and alter the upper atmosphere's thermal balance; some satellite components made of titanium and nickel alloys (like inconel) may survive reentry intact, as demonstrated when a 2024 ISS battery pallet piece pierced a Florida home; and current plasma tunnels can only test individual components, not full satellites. The team uses 6-megawatt electric arc plasma flows reaching 5,000–8,000°C to melt satellite material samples, studying emission spectra to understand what chemical compounds form during reentry. Researchers warn that existing regulations (1-in-10,000 survival probability per satellite) are inadequate for the scale of planned megaconstellations. ## Full article daily.dev links to this article rather than hosting it. 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