![\"An](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/05\/Breaking_apart_on_reentry.png\")
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\n\t\t\t\t\t\tA satellite breaks apart during atmospheric reentry, with solar panels, a dish antenna, and other components flying outward as intense heat engulfs the spacecraft (shown here in an artist’s depiction). As launch rates have surged in recent years, spacecraft built from stronger, more heat-resistant materials are increasingly surviving reentry and reaching the ground as dangerous debris. Credit: ESA\/ Sacha Berna\t\t\t\t\t<\/p>\n
When it comes to space debris, what goes up is coming down more often \u2013 and not safely.<\/p>\n
When spacecraft launch, some components, including nonreusable rocket boosters, are jettisoned to decrease weight, leaving them to intentionally burn up as they reenter the atmosphere. Satellites also enter the atmosphere at the end of their life, supposedly burning up. But in many cases, they are\u00a0not doing so as predicted<\/a>.<\/p>\n Debris from partially burned-up spacecraft components and satellites reentering Earth\u2019s atmosphere can\u00a0pose a risk to people and structures on the ground<\/a>. The surge in launches, driven largely by\u00a0private players such as SpaceX<\/a>, is turning a once-remote risk into a growing threat.<\/p>\n Our\u00a0materials research group<\/a>\u00a0at the University of Wisconsin-Stout is studying the materials that allow reentry debris to survive. We look for ways to safely modify their exceptional heat-resistant qualities to make them safer for atmospheric reentry.<\/p>\n SpaceX recovered a Composite-Overwrapped Pressure Vessel from last week\u2019s Falcon 9 re-entry. It was found on private property in southwest Grant County this week. Media and treasure hunters: we are not disclosing specifics. The property owner simply wants to be left alone. pic.twitter.com\/dEIQAotItY<\/a><\/p>\n \u2014 Grant County Sheriff (@GrantCoSheriff) April 2, 2021<\/a><\/p>\n Debris landing on Earth<\/p>\n Reentry debris\u00a0has fallen on<\/a>\u00a0both private and public property around the world\u00a0multiple times<\/a>\u00a0since 2021. Some of the most notable events involve pieces from SpaceX Dragon\u2019s carbon fiber trunk, which stays attached to the crewed capsule until just hours before its reentry. These trunks are larger than a 15-passenger van and used for storage.<\/p>\n Trunk debris from the Crew 7 mission to the International Space Station has\u00a0landed in North Carolina<\/a>, and fragments from the Crew 1 mission\u00a0landed in New South Wales, Australia<\/a>. Similarly, debris from the Axiom 3 mission\u00a0landed in Saskatchewan, Canada<\/a>.<\/p>\n Don\u2019t let yourself be misled. Understand issues with help from experts<\/p>\n This site is protected by reCAPTCHA and the Google\u00a0Privacy Policy<\/a>\u00a0and\u00a0Terms of Service<\/a>\u00a0apply.<\/p>\n A large piece of space debris from a SpaceX Dragon capsule was found by a campsite groundskeeper in North Carolina in 2025.<\/p>\n<\/p>\n In addition to trunk debris, carbon fiber components that hold pressurized gases to adjust a spacecraft\u2019s orientation also make up a lot of recovered reentry debris. Some of these most recent recoveries have been in\u00a0Australia, Argentina and Poland<\/a>.<\/p>\n Most of the debris that reenters the atmosphere burns up, so why are these pieces making it down to Earth\u2019s surface?<\/p>\n Atmospheric reentry<\/p>\n Satellites such as\u00a0SpaceX\u2019s Starlink reside in low Earth orbit<\/a>, typically between 190 and 1,240 miles (300 and 2000 kilometers) above the Earth\u2019s surface. To stay there, they need to move really fast, at about\u00a017,000 miles (27,000 km) per hour<\/a>. To reach this speed, a rocket with a million pounds of fuel had to accelerate it, and part of this energy is still contained within the satellite\u2019s momentum.<\/p>\n As an object in orbit drifts down, closer to Earth\u2019s upper atmosphere, it starts to collide with air molecules,\u00a0slowing the object down<\/a>. The amount of heat generated from this interaction\u00a0rapidly consumes the satellite<\/a>, melting metal at over 3,000 degrees Fahrenheit (1,600 degrees Celsius).<\/p>\n More launches<\/p>\n Countries around the world have been launching items into space since the 1950s, so why is reentry a concern now?<\/p>\n Starting in the 1960s, about\u00a0100 objects were launched into space every year<\/a>\u00a0\u2013 or at least that was the case until 2016. Since then, the number has been increasing exponentially. In 2016, 200 objects launched. But in 2025,\u00a0that number was 4,500, meaning<\/a>\u00a020% of\u00a0all objects launched into space<\/a>\u00a0since the 1950s were launched last year.<\/p>\n Most of these launches came from companies in the United States,\u00a0such as SpaceX<\/a>\u00a0and\u00a0Rocket Labs<\/a>. Companies like these, along with those outside of the U.S., have\u00a0plans for large satellite constellations<\/a>\u00a0composed of hundreds of thousands to a million satellites.<\/p>\n The more objects and payloads launched, the more reentry events occur. Satellite operators are\u00a0required to remove their<\/a>\u00a0decommissioned satellites from orbit after 25 years to comply with regulations set in place by international committees. Groups across the world, including the Federal Communications Commission in the U.S., have pushed to shorten the deorbit window\u00a0to five years<\/a>. Because of these guidelines, the full influx of reentry debris events from these recent launches will not be felt for another 10 or more years.<\/p>\n The objects launched and policy decisions made today will have a lasting effect on future safety.<\/p>\n Carbon fiber<\/p>\n As the world has progressed technologically, efficiency for launching items into space has too.<\/p>\n Satellites and spacecraft are becoming lighter, stronger and more heat resistant because of materials such as\u00a0carbon fiber-reinforced plastics<\/a>\u00a0and new metals. These strong materials are sought after because they\u2019re lightweight, but they can also cause deorbiting debris to withstand reentry temperatures.<\/p>\n Carbon fiber, once used exclusively in space technology, is now found in common\u00a0items such as bicycle frames and racing car bodies<\/a>. It is still the gold standard for fabricating high-strength, low-weight materials for\u00a0spacecraft components<\/a>\u00a0such as rocket fuselages, interstaging \u2013 the protective housing found between the rocket stages \u2013 and pressure vessels that experience extreme temperatures and high mechanical stress and strain.<\/p>\n Simple metals such as aluminum and steel melt and burn away, while complex materials such as carbon fiber, which is manufactured at up to\u00a05,000 F (3,000 C)<\/a>,\u00a0burn away unpredictably<\/a>, changing the way jettisoned components break up upon reentry.<\/p>\n Since the early 2000s, a\u00a0majority of recovered space debris contains<\/a>\u00a0either carbon fiber-reinforced plastic sections or metal components wrapped with carbon fiber. The carbon fiber can act as an unintentional heat shield for heavier, more harmful debris.<\/p>\n Design For demise<\/p>\n Design for demise is a major area of research focused on mitigating the risk of reentry debris. Instead of relying on\u00a0controlled and meticulously timed deorbits<\/a>\u00a0that send components that survive reentry into the ocean at the end of their lives, spacecraft components are engineered to ensure they completely disintegrate while deorbiting through the atmosphere.<\/p>\n Design for demise can take many forms.\u00a0These range from<\/a>\u00a0changing to more heat-susceptible materials to relocating harder-to-burn components to areas of the spacecraft that will be hotter during reentry, or using linkages that break apart at high temperatures to separate structures into smaller components to help them burn up.<\/p>\n With so much focus historically on spacecraft being made from the lightest, strongest and most heat-resistant materials available, it may seem counterintuitive to intentionally make some materials weaker. The key is making materials smarter, so they maintain their strength during their mission but weaken under the heat of reentry.<\/p>\n Matthew Ray<\/a> is a professor of chemistry and chair of the Department of Chemistry and Physics at the University of Wisconsin-Stout. He received his Ph.D. from Lehigh University where he studied surface chemistry and colloidal interactions at the Emulsion Polymers Institute.<\/p>\n Reese Hufnagel<\/a> is a student at the University of Wisconsin-Stout pursuing a Bachelor\u2019s in Chemistry with Minors in Materials Science and Physics. For the past two years, Reese has worked as a Research Assistant in the Department of Chemistry and Physics at UW-Stout.<\/p>\n This article is republished from\u00a0The Conversation<\/a>\u00a0under a Creative Commons license. Read the\u00a0original article<\/a>.<\/p>\n![\"\"](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/05\/yearly-number-of-objects-launched-into-outer-space.png\")
Credit: OurWorldinData.org\/space-exploration-satellites<\/a>\u00a0|\u00a0CC BY<\/a><\/p>\n![\"A](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/05\/file-20260328-57-vazv0t.jpg\")
<\/a>This map shows locations where confirmed space debris has been recovered. With the increase in launches, the European Space Agency predicts that future space debris could fall practically anywhere across the world.\u00a0Credit: European Space Agency<\/a><\/p>\n![\"The](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2026\/05\/1778813956_907_count.gif\")
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