Dr. John Barentine FRAS<p>"While <a href="https://astrodon.social/tags/SpaceX" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceX</span></a> aims to advance global connectivity, the rapid expansion of <a href="https://astrodon.social/tags/Starlink" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Starlink</span></a> highlights the urgent need for regulatory oversight and sustainable <a href="https://astrodon.social/tags/satellite" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellite</span></a> design. The potential solutions for the harm caused by the Starlink constellation may include but are not limited to regulations and requirements related to the materials used and polluted during re-entry and launch."</p><p><a href="https://ieeexplore.ieee.org/abstract/document/11021181" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">ieeexplore.ieee.org/abstract/d</span><span class="invisible">ocument/11021181</span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
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#spaceenvironment
3 posts · 2 participants · 0 posts today
Dr. John Barentine FRAS<p>"Our latest research explores the tipping point when launching more rockets will begin to cause problems. Our findings show that once rates reach 2,000 launches a year – about a ten-fold increase on last year – the current healing of the ozone layer slows down. We argue that with care, we can avoid this future. The economic benefits of industry growth can be realised, but it will take a collaborative effort."</p><p><a href="https://theconversation.com/a-10-fold-increase-in-rocket-launches-would-start-harming-the-ozone-layer-new-research-257480" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">theconversation.com/a-10-fold-</span><span class="invisible">increase-in-rocket-launches-would-start-harming-the-ozone-layer-new-research-257480</span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Space Environmentalism<p>"The international <a href="https://mastodon.social/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> industry is on a growth trajectory, but new research shows a rapid increase in rocket launches would damage the <a href="https://mastodon.social/tags/ozone" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ozone</span></a> layer. Several hundred rockets are launched globally each year by a mix of commercial companies and nation-state space programmes. Our findings show that once rates reach 2,000 launches a year the current healing of the ozone layer slows down. We argue that with care, we can avoid this future.”</p><p><a href="https://theconversation.com/a-10-fold-increase-in-rocket-launches-would-start-harming-the-ozone-layer-new-research-257480" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">theconversation.com/a-10-fold-</span><span class="invisible">increase-in-rocket-launches-would-start-harming-the-ozone-layer-new-research-257480</span></a></p><p><a href="https://mastodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Space Environmentalism<p>"'Generally speaking, this is not good for anyone who wants to continue to receive benefits from the use of space. Pieces of debris at that altitude will stick around for years, if not decades. Leaving those rocket bodies at 700-800 km altitude is incredibly irresponsible. China is just beginning to launch its very large constellations so there is time to fix this before it becomes a grave danger.'”</p><p><a href="https://spacenews.com/chinas-megaconstellation-launches-could-litter-orbit-for-more-than-a-century-analysts-warn/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">spacenews.com/chinas-megaconst</span><span class="invisible">ellation-launches-could-litter-orbit-for-more-than-a-century-analysts-warn/</span></a></p><p><a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/SpaceDebris" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceDebris</span></a> <a href="https://mastodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Dr. John Barentine FRAS<p><a href="https://astrodon.social/tags/SpaceX" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceX</span></a>'s "four-page letter lists the alleged flaws with AST's paperwork, concluding that its 'orbital debris mitigation plan fails to demonstrate that the FM1 satellite can operate safely and sustainably.' The same document also faults the application for failing to provide more details on how the company will prevent its satellite from disrupting <a href="https://astrodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a>, even though AST recently reached a deal with the US National Science Foundation."</p><p><a href="https://www.pcmag.com/news/spacex-seizes-on-careless-errors-to-delay-ast-spacemobiles-giant-satellite" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">pcmag.com/news/spacex-seizes-o</span><span class="invisible">n-careless-errors-to-delay-ast-spacemobiles-giant-satellite</span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceDebris" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceDebris</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Dr. John Barentine FRAS<p>From a <span class="h-card" translate="no"><a href="https://flipboard.com/@LiveScience" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>LiveScience</span></a></span> op-ed by <span class="h-card" translate="no"><a href="https://mastodon.social/@sundogplanets" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>sundogplanets</span></a></span>: "<a href="https://astrodon.social/tags/LEO" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LEO</span></a> is a valuable resource that must be protected and shared in a way that benefits the most people while simultaneously protecting LEO for use by future generations. We cannot have tens of thousands of <a href="https://astrodon.social/tags/satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellites</span></a> in LEO without severe consequences for the atmosphere and an increasingly high likelihood of <a href="https://astrodon.social/tags/KesslerSyndrome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>KesslerSyndrome</span></a>, which will limit our use of satellites for decades to centuries."</p><p><a href="https://www.livescience.com/space/astronomy/what-goes-up-must-come-down-how-megaconstellations-like-spacexs-starlink-network-pose-a-grave-safety-threat-to-us-on-earth-opinion" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">livescience.com/space/astronom</span><span class="invisible">y/what-goes-up-must-come-down-how-megaconstellations-like-spacexs-starlink-network-pose-a-grave-safety-threat-to-us-on-earth-opinion</span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://astrodon.social/tags/SpaceDebris" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceDebris</span></a></p>
Space Environmentalism<p>From an op-ed in <span class="h-card" translate="no"><a href="https://flipboard.com/@LiveScience" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>LiveScience</span></a></span> by CSE's own <span class="h-card" translate="no"><a href="https://mastodon.social/@sundogplanets" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>sundogplanets</span></a></span>: "<a href="https://mastodon.social/tags/LEO" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LEO</span></a> is a valuable resource that must be protected and shared in a way that benefits the most people while simultaneously protecting LEO for use by future generations. We cannot have tens of thousands of <a href="https://mastodon.social/tags/satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellites</span></a> in LEO without severe consequences for the atmosphere and an increasingly high likelihood of <a href="https://mastodon.social/tags/KesslerSyndrome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>KesslerSyndrome</span></a>, which will limit our use of satellites for decades to centuries."</p><p><a href="https://www.livescience.com/space/astronomy/what-goes-up-must-come-down-how-megaconstellations-like-spacexs-starlink-network-pose-a-grave-safety-threat-to-us-on-earth-opinion" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">livescience.com/space/astronom</span><span class="invisible">y/what-goes-up-must-come-down-how-megaconstellations-like-spacexs-starlink-network-pose-a-grave-safety-threat-to-us-on-earth-opinion</span></a></p><p><a href="https://mastodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Space Environmentalism<p>"Invisible radiation leaking out of private <a href="https://mastodon.social/tags/satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellites</span></a>, like SpaceX's <a href="https://mastodon.social/tags/Starlink" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Starlink</span></a> spacecraft, is disrupting radio astronomers' ability to detect important signals from across the universe. Some researchers are so worried about this invisible pollution that they think we could eventually reach an 'inflection point,' beyond which ground-based <a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> instruments could become radio-blind to the cosmos.”</p><p><a href="https://www.livescience.com/space/astronomy/no-radio-astronomy-from-the-ground-would-be-possible-anymore-satellite-mega-swarms-are-blinding-us-to-the-cosmos-and-a-critical-inflection-point-is-approaching" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">livescience.com/space/astronom</span><span class="invisible">y/no-radio-astronomy-from-the-ground-would-be-possible-anymore-satellite-mega-swarms-are-blinding-us-to-the-cosmos-and-a-critical-inflection-point-is-approaching</span></a></p><p><a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://mastodon.social/tags/RadioAstronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RadioAstronomy</span></a></p>
Space Environmentalism<p>"Eruptions from the sun are shortening the lives of <a href="https://mastodon.social/tags/satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellites</span></a> in Earth orbit, particularly large constellation [Near solar maximum], increased eruptions from the <a href="https://mastodon.social/tags/sun" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>sun</span></a> can create geomagnetic storms that heat our planet’s atmosphere, causing it to swell outwards in size and increasing drag on satellites. This effect is only becoming apparent now because of a boom in satellite launches, particularly by <a href="https://mastodon.social/tags/SpaceX" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceX</span></a>.”</p><p><a href="https://www.newscientist.com/article/2481905-the-sun-is-killing-off-spacexs-starlink-satellites/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">newscientist.com/article/24819</span><span class="invisible">05-the-sun-is-killing-off-spacexs-starlink-satellites/</span></a></p><p><a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Dr. John Barentine FRAS<p>"The Fermi Earth orbit at a 500 x 512 km altitude is subject to collision warnings due to new constellations deployed near Fermi: currently over 7,000 satellites and growing. This paper presents analysis concerning changing Fermi's orbit and associated operational flight dynamics considerations."</p><p><a href="https://arxiv.org/abs/2505.15732" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2505.15732</span><span class="invisible"></span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Space Environmentalism<p>"Researchers project that active <a href="https://mastodon.social/tags/satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>satellites</span></a> could skyrocket to 1,00,000 before stabilising, a threshold considered the 'carrying capacity' of the <a href="https://mastodon.social/tags/LEO" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LEO</span></a>. This limit, where collision risks become significant, could be reached by 2050 at current launch rates. ... Scientists are urging a slowdown in launches until global regulations can address these issues.”</p><p><a href="https://in.mashable.com/science/94354/earths-orbit-is-reaching-saturation-point-as-satellite-launches-boom" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">in.mashable.com/science/94354/</span><span class="invisible">earths-orbit-is-reaching-saturation-point-as-satellite-launches-boom</span></a></p><p><a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://mastodon.social/tags/OrbitalCrowding" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OrbitalCrowding</span></a></p>
Dr. John Barentine FRAS<p>Evidence that some of the Chinese <a href="https://astrodon.social/tags/Qianfan" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Qianfan</span></a> satellites are tumbling and presumably no longer under control. "All six of the tumbling <a href="https://astrodon.social/tags/spacecraft" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>spacecraft</span></a> are from Launch 2. As noted in Section 2, those satellites were made by a different manufacturer than the spacecraft in Qianfan launches 1, 3 and 4. <span class="h-card" translate="no"><a href="https://mastodon.social/@planet4589" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>planet4589</span></a></span> indicates that all the tumbling spacecraft have failed."</p><p><a href="https://arxiv.org/abs/2505.07194" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2505.07194</span><span class="invisible"></span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/Satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Satellites</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a></p>
Dr. John Barentine FRAS<p>Thanks to <span class="h-card" translate="no"><a href="https://mastodon.social/@DrCarpineti" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>DrCarpineti</span></a></span> and <span class="h-card" translate="no"><a href="https://threads.net/@iflscience/" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>iflscience</span></a></span> for shouting out our new organization dedicated to protecting the <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a>. </p><p><a href="https://www.iflscience.com/pollution-related-to-space-is-getting-worse-as-trump-and-musk-target-research-and-regulations-79174" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">iflscience.com/pollution-relat</span><span class="invisible">ed-to-space-is-getting-worse-as-trump-and-musk-target-research-and-regulations-79174</span></a></p>
Dr. John Barentine FRAS<p>Here's hoping that <a href="https://astrodon.social/tags/Pope" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pope</span></a> Leo XIV will keep speaking up for the environment — and maybe even recognize publicly that 'reciprocity' also applies to our relationship with the now distinctly human environment of outer space.</p><p><a href="https://www.vaticannews.va/en/vatican-city/news/2024-11/climate-change-conference-latin-america-cardinals-rome.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">vaticannews.va/en/vatican-city</span><span class="invisible">/news/2024-11/climate-change-conference-latin-america-cardinals-rome.html</span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://astrodon.social/tags/Environment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Environment</span></a></p>
Dr. John Barentine FRAS<p>"'It’s stuff between one centimeter and 10 that we’re really worried about because we can’t see that stuff. I’m worried about astronauts. They’re exposed when they’re doing their spacewalks, and a piece of debris that size can go right through them.'"</p><p><a href="https://www.independent.co.uk/space/satellite-wars-space-exploration-research-b2742463.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">independent.co.uk/space/satell</span><span class="invisible">ite-wars-space-exploration-research-b2742463.html</span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://astrodon.social/tags/OrbitalCrowding" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OrbitalCrowding</span></a> <a href="https://astrodon.social/tags/SpaceDebris" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceDebris</span></a> <a href="https://astrodon.social/tags/KesslerSyndrome" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>KesslerSyndrome</span></a></p>
Dr. John Barentine FRAS<p>An arms race in space threatens every one of us down here. And yet, so USSF claims, "the evolution of the service requires a shift from systems designed for a peaceful space environment to those built for resilience and effectiveness against emerging threats. This strategic shift necessitates significant investments in advanced technologies, resilient infrastructure, and highly skilled personnel."</p><p><a href="https://www.vandenberg.spaceforce.mil/News/Article-Display/Article/4174792/space-force-documentary-screened-on-capitol-hill-highlighting-need-for-space-su/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">vandenberg.spaceforce.mil/News</span><span class="invisible">/Article-Display/Article/4174792/space-force-documentary-screened-on-capitol-hill-highlighting-need-for-space-su/</span></a></p><p><a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://astrodon.social/tags/UnitedStates" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UnitedStates</span></a> <a href="https://astrodon.social/tags/SpaceForce" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceForce</span></a> <a href="https://astrodon.social/tags/SpacePolicy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpacePolicy</span></a> <a href="https://astrodon.social/tags/SpaceWarfare" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceWarfare</span></a></p>
Dr. John Barentine FRAS<p>"Satellites in low-Earth orbit eventually have to come down, and companies rely on the upper atmosphere to act as a waste incinerator. That’s exposed a blind spot in environmental laws: They only deal with pollution from human activities near Earth’s surface. But just as carbon dioxide and ozone-destroying compounds drifting up have created problems, so too can pollutants raining down at ever-increasing rates."</p><p> <a href="https://www.bloomberg.com/graphics/2025-space-orbit-satellites-pollution/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bloomberg.com/graphics/2025-sp</span><span class="invisible">ace-orbit-satellites-pollution/</span></a></p><p><a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/Atmosphere" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Atmosphere</span></a> <a href="https://astrodon.social/tags/Ozone" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Ozone</span></a></p>
Space Environmentalism<p>"<a href="https://mastodon.social/tags/Satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Satellites</span></a> in low-Earth orbit eventually have to come down, and companies rely on the upper <a href="https://mastodon.social/tags/atmosphere" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>atmosphere</span></a> to act as a waste incinerator. That’s exposed a blind spot in environmental laws: They only deal with pollution from human activities near Earth’s surface. But just as carbon dioxide and ozone-destroying compounds drifting up have created problems, so too can pollutants raining down at ever-increasing rates."</p><p> <a href="https://www.bloomberg.com/graphics/2025-space-orbit-satellites-pollution/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bloomberg.com/graphics/2025-sp</span><span class="invisible">ace-orbit-satellites-pollution/</span></a></p><p><a href="https://mastodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a></p>
Dr. John Barentine FRAS<p>“The results presented above suggest these perceived benefits for constellations at low LEO altitudes may not be realised. The large numbers of satellites within these constellations and the extended period over which the constellations are maintained by replenishing satellites – potentially over many decades – will mean that an unstable or even runaway environment at low LEO altitudes will continue to be a possibility.” </p><p><a href="https://www.researchgate.net/profile/Hugh-Lewis/publication/391093502_CRITICAL_NUMBER_O[…]ENT-OF-THE-STABILITY-OF-THE-ORBITAL-DEBRIS-ENVIRONMENT.pdf" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">researchgate.net/profile/Hugh-</span><span class="invisible">Lewis/publication/391093502_CRITICAL_NUMBER_O[…]ENT-OF-THE-STABILITY-OF-THE-ORBITAL-DEBRIS-ENVIRONMENT.pdf</span></a></p><p><a href="https://astrodon.social/tags/SpaceDebris" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceDebris</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/Satellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Satellites</span></a> <a href="https://astrodon.social/tags/Megaconstellations" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Megaconstellations</span></a></p>
Dr. John Barentine FRAS<p>“Controlled deorbiting of the Falcon 9 second-stage over Arizona generated spectacular disturbances in the ionospheric plasma measured in total electron content ... Conical and concentric signatures, as well as electron depletion, are consistent with radiation of acoustic waves during Falcon 9 deorbit and/or potential release of constituents."<br> <a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL112364" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">agupubs.onlinelibrary.wiley.co</span><span class="invisible">m/doi/10.1029/2024GL112364</span></a></p><p><a href="https://astrodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://astrodon.social/tags/SpaceEnvironment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceEnvironment</span></a> <a href="https://astrodon.social/tags/Atmosphere" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Atmosphere</span></a> <a href="https://astrodon.social/tags/Ionosphere" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Ionosphere</span></a> <a href="https://astrodon.social/tags/SpaceX" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SpaceX</span></a> <a href="https://astrodon.social/tags/Falcon9" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Falcon9</span></a></p>
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