Space launch costs could fall 90% by 2040, opening up a new era of space exploration and economic activity. This rapid drop in costs is primarily attributed to advancements in technology and increased competition, with SpaceX leading the charge. The study, published in PNAS Nexus, highlights a clear pattern: as the total payload launched into space doubles, the average cost per kilogram decreases by 21.2%. This trend is compared to the historical drop in steamship freight costs during the 19th century, driven by the expansion of global trade. The research also emphasizes the role of international cooperation and private sector involvement in reducing launch costs. With the space industry's value surpassing $600 billion in 2024, equivalent to Sweden's economy, the potential for growth is immense. The study predicts that by 2040, SpaceX's Starship rocket could achieve 32,000 tons of annual payload capacity, further driving down costs. This could lead to a wide range of applications, from space colonization and solar power production to asteroid mining and offshoring polluting industries. However, the study warns that the trend is not guaranteed forever, and the dominance of a single company or geopolitical tensions could slow down cost reductions. Nevertheless, the long-term outlook is promising, and the potential for economic activity in space is vast, challenging our traditional understanding of space exploration and its limitations.
