NASA Human Space Exploration: Significant Investments in Future Capabilities Require Strengthened Management Oversight
Fast Facts
NASA is developing 3 closely related systems—the Orion crew vehicle, Space Launch System, and Exploration Ground Systems—to put astronauts into space.
Since our last report, NASA's launch of Artemis I—the first uncrewed test flight involving these 3 systems—was again delayed, this time due in part to manufacturing challenges. The new date, November 2021, doesn't take into account any COVID-19 delays.
NASA is awarding billions of dollars in contracts for future flights, but keeps changing its schedules and plans for system upgrades to support these flights. We recommended NASA increase oversight measures for these upgrades following Artemis I.
NASA's Proposed Schedule for First Three Artemis Missions
Highlights
What GAO Found
The National Aeronautics and Space Administration (NASA) again delayed the planned launch date for Artemis I, the first uncrewed test flight involving three closely related human spaceflight programs—the Orion crew vehicle, Space Launch System (SLS), and Exploration Ground Systems (EGS). Together, these programs aim to continue human space exploration beyond low-Earth orbit. The most recent delay, to November 2021, resulted in part from manufacturing challenges and represents a 36-month slip since NASA established a schedule to measure performance in 2014. This new launch date does not account for the effects of COVID-19. According to NASA officials, COVID-19 delays and schedule risks will place pressure on NASA's ability to achieve this launch date.
Development cost estimates for key programs also increased. The cost of the SLS program increased by 42.5 percent and the EGS program by 32.3 percent since 2014, for a combined increase of over $3 billion, bringing the total to $11.5 billion. NASA does not plan to complete revised estimates for Orion, which are tied to the second, crewed test flight (Artemis II) before spring 2021.
Key Parts of Space Launch System Ready for Testing at Stennis Space Center
NASA awarded billions of dollars in development and production contracts to support flights beyond Artemis I, but the flight schedule has changed frequently due to a lack of clear requirements and time frames for planned capability upgrades. Limited NASA oversight also places efforts to plan and execute future flights at risk of adverse outcomes, such as increased costs or delays. For example, NASA is committed to establishing cost and schedule performance baselines for these efforts, but it plans to do so too late in the acquisition process to be useful as an oversight tool. In addition, senior leaders do not receive consistent and comprehensive information at quarterly briefings on future efforts, such as a program to begin developing a more powerful upper stage for SLS. This is because current updates provided to NASA management focus primarily on the more short-term Artemis I and II flights. This approach places billions of dollars at risk of insufficient NASA oversight.
Why GAO Did This Study
NASA is pursuing an aggressive goal to return American astronauts to the surface of the Moon by the end of 2024. The success of NASA's plans hinges, in part, on two upcoming test flights. An uncrewed test flight and subsequent crewed test flight are intended to demonstrate the capability of a new launch vehicle, crew capsule, and ground systems.
The House Committee on Appropriations included a provision in its 2017 report for GAO to continue to review NASA's human space exploration programs. This is the latest in a series of GAO reports addressing this topic. This report assesses (1) the progress the programs are making towards the first test flight, known as Artemis I, with respect to schedule and cost, and (2) the extent to which NASA's human space exploration programs are positioned to support the planned Artemis flight schedule beyond Artemis I.
To do this work, GAO examined program cost and schedule reports, test plans, and contracts, and interviewed officials. GAO also assessed the extent to which the COVID-19 state of emergency has affected schedules for these programs.
Recommendations
GAO is making two recommendations to NASA to establish baselines ahead of a key design review and improve internal reporting about capability upgrades for human space exploration programs beyond Artemis I. NASA concurred with the recommendations made in this report.
Recommendations for Executive Action
| Agency Affected | Recommendation | Status |
|---|---|---|
| National Aeronautics and Space Administration |
Priority Rec.
We recommend that the NASA Administrator ensure that the NASA Associate Administrator for Human Exploration and Operations Mission Directorate establish cost and schedule baselines for SLS Block 1B, SLS Block 2, Mobile Launcher 2, and Orion Docking System at their preliminary design reviews or as soon as practicable in advance of critical design reviews. (Recommendation 1) |
Open
NASA agreed with this recommendation. In April 2021, NASA officials stated that it was on track to establish a baseline for SLS Block 1B and a separate baseline for Mobile Launcher 2 by September 30, 2021. As of February 2023, however, NASA had not released cost and schedule baselines for either effort. To fully implement this recommendation, NASA will need to provide documentation that it established cost and schedule baselines for all four systems-including SLS Block 2-before their respective critical design reviews. Establishing cost and schedule baselines for these programs will provide decision makers an important oversight tool to monitor program performance.
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| National Aeronautics and Space Administration | We recommend that the NASA Administrator ensure that the NASA Associate Administrator for Human Exploration and Operations Mission Directorate directs the Exploration Systems Development organization to include cost, schedule, and technical performance updates for SLS Block 1B, SLS Block 2, Mobile Launcher 2, and the Orion Docking System in its quarterly program status reviews in order to maintain oversight of these development projects. (Recommendation 2) |
Open
NASA agreed with this recommendation, but as of July 2023, has not taken steps necessary to fully implement. While the amount and quality of information presented in the quarterly status reports has improved in some instances, key pieces of information related to cost, schedule, and technical performance were missing for each upgrade effort.
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