
NASA’s Commercial Lunar Payload Services (CLPS) initiative is reshaping how lunar exploration is approached, with a focus on commercial partnerships and an emphasis on fostering a lunar delivery economy. Launched in 2018, CLPS represents a significant shift in NASA’s strategy for lunar exploration. Unlike traditional NASA-led missions, CLPS leverages the capabilities of private sector vendors to design, build, and deliver payloads to the lunar surface, often with limited oversight from NASA. This initiative is part of the broader Artemis program, which aims to return humans to the Moon and establish a sustainable presence on the lunar surface by the end of this decade.
The Foundation of CLPS
NASA’s journey toward the CLPS initiative began with the establishment of the Lunar Discovery and Exploration Program (LDEP) within the Science Mission Directorate (SMD) in 2018. LDEP was created to explore innovative approaches for achieving both human and scientific exploration goals. As part of LDEP, CLPS was designed to stimulate commercial interest in lunar exploration, build a sustainable lunar economy, and reduce NASA’s dependence on government-built spacecraft.
The CLPS initiative introduces a new model of collaboration between NASA and the private sector, where commercial vendors assume the responsibility for delivering science and technology payloads to the Moon. NASA selected 14 U.S. commercial vendors that were eligible to compete for CLPS task orders through an indefinite-delivery, indefinite-quantity contract, valued at $2.6 billion through 2028. This contract allows vendors to bid on NASA’s lunar delivery tasks, which range from small scientific instruments to larger payloads designed for more complex missions.



The shift in NASA’s approach represents a strategic decision to reduce costs and encourage innovation by enabling private companies to take on greater responsibility for space exploration. By doing so, NASA aims to promote the development of commercial lunar capabilities, which could, in turn, support the Artemis program and other long-term goals of space exploration.
How CLPS Works
CLPS is structured to operate more like a commercial service than a traditional NASA mission. NASA selects and funds payloads through competitive solicitations and assigns them to commercial vendors for lunar delivery. These vendors are responsible for the entire mission, including the design, development, and integration of lunar landers, securing launch services, and operating the mission on the lunar surface.
The CLPS model contrasts with traditional NASA missions in several ways. Typically, NASA would develop both the spacecraft and payloads in parallel, ensuring that both are optimized for one another. In the CLPS model, however, NASA buys “off-the-shelf” commercial landers, and payloads must be designed to fit within the lander’s existing capabilities. This approach forces NASA to be more flexible with its science objectives while allowing commercial vendors to innovate and build on their experiences with each mission.
Another key aspect of CLPS is the use of firm-fixed-price (FFP) contracts. Under these contracts, vendors are responsible for delivering the payloads at a set price, with no opportunity for adjustment based on cost overruns. While this contract type shifts much of the financial and technical risk to the vendors, it also allows NASA to manage its budget more effectively by avoiding unforeseen expenses.
NASA’s involvement in CLPS missions is relatively limited compared to traditional missions. The agency provides technical insight and oversight, but this is often minimal to allow vendors the freedom to innovate. NASA’s goal is to be just one of many customers for these lunar delivery services, encouraging vendors to pursue additional commercial opportunities beyond NASA contracts.
The Importance of a Lunar Economy
The broader vision behind CLPS extends beyond simply delivering payloads to the Moon. NASA hopes that by encouraging commercial vendors to develop their own lunar landers and delivery services, a sustainable lunar economy will emerge. This could include commercial missions to the Moon that are independent of NASA contracts, with vendors flying non-NASA payloads or delivering services to other commercial and international customers.
For NASA, building a commercial lunar economy is an important step toward achieving long-term exploration goals, including human missions to Mars. By creating a competitive market for lunar delivery services, NASA can focus on advancing science and technology while leaving routine payload deliveries to commercial providers.
Challenges Faced by CLPS
Despite the promise of the CLPS initiative, the program has encountered numerous challenges that have delayed missions and increased costs. Since its inception, five of the eight task orders awarded have experienced schedule delays and price increases. The reasons for these challenges are varied, but they include vendor technical difficulties, changes in mission requirements, and the impact of external factors like the COVID-19 pandemic.
One of the primary challenges has been the overly optimistic schedule set by NASA for CLPS missions. The agency initially envisioned that vendors could deliver payloads to the Moon within 30 months of contract award. However, this aggressive timeline did not account for the technical difficulties faced by vendors who were developing lunar landers for the first time. The average time to launch has been 44 months, and most task orders have experienced significant delays.
Another challenge has been NASA’s decision to use FFP contracts for CLPS missions. While these contracts limit NASA’s financial risk, they are not always well-suited to the uncertain and emerging nature of the lunar delivery market. The market is still developing, and many of the vendors selected for CLPS contracts are relatively small companies with limited experience in space exploration. This has led to some vendors struggling with the technical and financial challenges of building and launching lunar landers.
In addition to the challenges faced by vendors, NASA itself has deviated from its original hands-off approach to CLPS. The agency has increased its insight and oversight of missions, particularly for larger and more complex payloads. This has led to cost increases and schedule delays as vendors have had to accommodate new requirements and additional testing.
The Impact of Vendor Challenges
The success of the CLPS initiative depends heavily on the capabilities and reliability of the commercial vendors involved. Many of these vendors are relatively new companies that are building lunar landers for the first time. As a result, they have encountered significant technical and financial challenges that have impacted the progress of the CLPS initiative.
Technical challenges have been particularly problematic for some vendors. For example, issues with propulsion systems, avionics, and other critical components have delayed lander development and led to mission failures. Astrobotic’s Peregrine lander, which was the first CLPS mission to launch, failed to make it to the Moon due to a problem with its propulsion system. Similarly, Intuitive Machines’ Nova-C lander successfully landed on the lunar surface but tipped over onto its side, rendering it unable to complete its mission.
In addition to technical challenges, vendors have faced financial difficulties that have threatened their ability to complete CLPS missions. Masten Space Systems, a CLPS vendor awarded a task order in 2020, filed for bankruptcy in 2022 due to financial pressures and difficulties in scaling up operations. This led to the cancellation of its mission and the loss of millions of dollars in NASA funding.
The financial stability of vendors is a significant concern for the future of the CLPS initiative. Many of the companies involved are small businesses with limited resources, and they rely heavily on winning multiple CLPS contracts to remain viable. Without a steady stream of task orders, these companies risk losing talent and institutional knowledge, which could further delay the development of lunar landers and jeopardize the success of the initiative.
The Role of NASA in CLPS
Although CLPS is designed to be a commercial initiative with minimal NASA involvement, the agency still plays an important role in ensuring the success of the program. NASA is responsible for selecting payloads, managing contracts, and providing technical oversight to vendors. The agency also plays a critical role in managing the risks associated with lunar missions, particularly for high-value payloads like the VIPER rover.
NASA has faced the challenge of balancing its desire for a hands-off approach with the need to ensure mission success. For example, when the VIPER mission was assigned to CLPS, NASA added augmented insight and additional testing requirements to reduce the risk of failure. This increased the cost of the task order by nearly 50 percent and delayed the mission by a year. While these measures were necessary to protect NASA’s investment in VIPER, they highlight the difficulty of maintaining the original vision of a hands-off approach.
NASA’s role in CLPS is also critical in maintaining the pace of lunar deliveries. The agency has committed to issuing two task orders per year, but cost increases and schedule delays have put this goal at risk. NASA must balance the need to keep vendors engaged with the realities of budget constraints and the technical challenges of lunar exploration.
Future Prospects for CLPS
Despite the challenges faced by the CLPS initiative, the future prospects for the program remain promising. The development of commercial lunar capabilities is an important step toward achieving NASA’s long-term exploration goals, including human missions to Mars. By fostering a competitive market for lunar delivery services, NASA is laying the groundwork for a sustainable lunar economy that could support future exploration efforts.
As the CLPS initiative continues, NASA will need to reassess its role in the commercial lunar delivery market. The agency has already begun to take steps to address the challenges faced by the program, including updating its market research and refining its management approach. These efforts will be critical to ensuring the success of the initiative and maintaining vendor engagement in the long term.
Looking ahead, the success of the CLPS initiative will depend on the ability of commercial vendors to overcome technical and financial challenges and deliver payloads to the lunar surface. NASA will also need to continue balancing its desire for a hands-off approach with the need to ensure mission success, particularly for high-value payloads. If successful, the CLPS initiative could revolutionize lunar exploration and pave the way for a new era of commercial space activities.
Summary
NASA’s Commercial Lunar Payload Services (CLPS) initiative represents a new approach to lunar exploration, emphasizing commercial partnerships and the development of a lunar economy. CLPS has the potential to revolutionize the way lunar missions are conducted by leveraging the capabilities of private sector vendors to design, build, and deliver payloads to the Moon. Through this initiative, NASA aims to foster a sustainable commercial lunar delivery market that could eventually operate independently of NASA’s contracts, supporting broader lunar and deep space exploration goals.
However, the path to realizing this vision has not been without its challenges. The CLPS initiative has faced significant cost increases and schedule delays, largely due to technical difficulties faced by vendors, financial pressures, and unforeseen external factors like the COVID-19 pandemic. Many of the vendors involved in the initiative are relatively new companies with limited experience in space exploration, and they have encountered challenges in developing the necessary technology and infrastructure to successfully deliver payloads to the Moon.
Despite these obstacles, progress has been made. As of early 2024, two CLPS missions have been launched, with one lander successfully reaching the lunar surface, albeit with operational challenges. NASA has also continued to refine its approach to managing the initiative, balancing the need for a hands-off approach with the reality of ensuring mission success, particularly for high-value payloads like the VIPER rover.
Looking to the future, the success of the CLPS initiative will depend on the ability of commercial vendors to continue developing and improving their lunar delivery capabilities. NASA will need to maintain a careful balance between encouraging commercial innovation and providing the oversight necessary to ensure that missions succeed. The lessons learned from the early years of the CLPS initiative will be invaluable in shaping the future of lunar exploration, not just for NASA but for the growing commercial space industry as well.
Ultimately, CLPS is more than just a program to deliver payloads to the Moon—it is a testbed for a new model of space exploration that relies on commercial partnerships and market-driven innovation. If successful, this model could play a key role in humanity’s return to the Moon, the establishment of a sustainable lunar presence, and future missions to Mars and beyond.


