A single collision in low Earth orbit could trigger a chain reaction of thousands of additional collisions, potentially leading to a scenario known as the Kessler syndrome. This event could disrupt essential services such as GPS navigation, weather forecasting, and financial transactions. A study published in January 2025 by Akhil Rao and Giacomo Rondina in the Journal of the Association of Environmental and Resource Economists estimated the timeframe for this scenario to occur, placing the critical tipping point between 2040 and 2184. Their model blends economic analysis with the physics of orbital collisions, emphasizing how economic incentives drive increased satellite launches and the associated risk of space debris. The Kessler syndrome refers to a situation where a collision between two satellites, traveling at speeds of 28,000 kilometers per hour, creates thousands of fragments. These fragments continue to orbit Earth for years, increasing the likelihood of further collisions. The concept was first introduced in 1978 by American astrophysicist Donald Kessler, who warned of the potential for a cascading effect of debris in space. Rao and Rondina’s model highlights a factor often overlooked in engineering: the economic considerations that influence the trajectory of the debris cloud. They note that low Earth orbit operates like an open-access resource, where each new satellite increases the collision risk for all others. Currently, no satellite operator is responsible for the costs associated with this risk, which are effectively passed on to competitors. The cost of launching a satellite does not include any share of this collective risk. Even if this external cost is addressed through taxes or usage fees, the Kessler syndrome could still occur. The researchers compare the situation to the extinction of an animal population, where exploiting the last individual may yield more immediate benefits than conservation. However, their findings remain a theoretical model rather than an observed phenomenon, and the parameters depend on limited data. The estimated timeframe varies depending on the assumptions used in the model. The risk of a debris cascade has real-world implications, as satellites are crucial for setting the clocks of banking networks and providing data for weather forecasts. The European Space Agency reported a noticeable decline in orbital conditions in 2025, with over 300 launches having placed more than 4,000 new satellites into orbit. The agency also observed that debris is now increasing faster than it is being removed from orbit, meaning that even if all launches stopped, the debris cloud would continue to grow. More than three satellites re-enter Earth’s atmosphere daily, and the required time for satellites to deorbit has been reduced from 25 years to five years.