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Rocket launch costs have dropped 96% since 1960. How low can they go?
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Rocket launch costs have plummeted by 96% since 1960, and a new study suggests they could drop by nearly as much again by 2040. Researchers at the Politecnico University of Turin and the University of Cambridge analyzed over 4,400 launches from 1960 to 2025, creating the largest dataset of its kind. The findings reveal that the average cost of sending one kilogram to orbit fell from $87,023 in 1960 to $3,868 in 2025, adjusted for inflation. This dramatic reduction has made space more accessible than ever, enabling commercial ventures like satellite constellations and space tourism.
The study, published in a peer-reviewed journal, addresses a gap in previous analyses that focused only on rocket production costs without accounting for launch frequency. By tracking 330 different rocket configurations from 13 countries, the researchers calculated a learning rate of 21.2%: each time the industry's cumulative payload doubled, costs dropped by that percentage. This learning rate surpasses that of solar panels, often cited as a benchmark for rapid cost decline.
Two key drivers explain the cost plunge. First, the end of the Cold War shifted space from a geopolitical race to a commercial enterprise, reducing the willingness to launch at any cost. Second, the advent of reusable rockets, led by SpaceX's Falcon 9, accelerated learning rates. Since reusability became standard, the industry has seen an even steeper decline, with SpaceX now accounting for roughly 75% of global payload mass.
The implications are vast. Lower launch costs could enable ambitious projects like large-scale space stations, asteroid mining, and interplanetary travel. However, the researchers warn that past trends may not continue. Space debris poses a growing threat, as collisions could create cascading debris fields—a scenario known as Kessler syndrome—making orbits hazardous and raising insurance costs.
Another risk is market concentration. With SpaceX dominating the launch market, a potential monopoly could allow it to raise prices, slowing cost reductions. Geopolitical tensions may also push governments to diversify launch providers, fragmenting the market and reducing economies of scale. These factors could offset the learning effects that have driven progress so far.
Despite these challenges, the study projects costs could fall to $1,600 per kilogram by 2030 and $300 by 2040, if current trends hold. Co-author Alessio Terzi noted, 'There is still significant scope for further cost reductions going forward.' Policymakers and industry leaders must address space debris, foster competition, and manage geopolitical risks to sustain this trajectory.
In conclusion, the next 15 years could see space launch costs drop another 90% or more, but this depends on overcoming obstacles that threaten to slow progress. The study provides a roadmap for achieving a future where space is truly affordable for all.
