President Trump's FY26 Budget Revitalizes Human Space Exploration: NASA

Transitions Artemis Costs to a More Sustainable Approach

May 05, 2025

The FY26 federal budget proposed by the Trump administration, released Friday, would accelerate NASA's human space exploration of the Moon and Mars with a fiscally responsible portfolio of missions.

"This proposal includes investments to simultaneously pursue exploration of the Moon and Mars while still prioritizing critical science and technology research."
Janet Petro, NASA

The Budget refocuses NASA funding on beating China back to the Moon and on putting the first human on Mars. By allocating over $7 billion for lunar exploration and introducing $1 billion in new investments for Mars-focused programs, the Budget ensures that America’s human space exploration efforts remain unparalleled, innovative, and efficient. To achieve these objectives, the Budget would streamline the NASA workforce, information technology services, NASA Center operations, facility maintenance, and construction and environmental compliance activities. The Budget also terminates multiple unaffordable missions and reduces lower priority research, resulting in a leaner Science program that reflects a commitment to fiscal responsibility.

"This proposal includes investments to simultaneously pursue exploration of the Moon and Mars while still prioritizing critical science and technology research," said acting NASA Administrator Janet Petro. "I appreciate the President's continued support for NASA's mission and look forward to working closely with the administration and Congress to ensure we continue making progress toward achieving the impossible."

Among the specific priorities laid out in the budget request are:

An increased commitment to human space exploration in pursuit of exploration of both the Moon and Mars. By allocating more than $7 billion for lunar exploration and introducing $1 billion in new investments for Mars-focused programs, the budget ensures America's human space exploration efforts remain unparalleled, innovative, and efficient.
Refocus science and space technology resources to efficiently execute high priority research. Consistent with the administration's priority of returning to the Moon before China and putting an American on Mars, the budget will advance priority science and research missions and projects, ending financially unsustainable programs including Mars Sample Return. It emphasizes investments in transformative space technologies while responsibly shifting projects better suited for private sector leadership.
Transition the Artemis campaign to a more sustainable, cost-effective approach to lunar exploration. The SLS (Space Launch System) rocket and Orion capsule will be retired after Artemis III, paving the way for more cost-effective, next-generation commercial systems that will support subsequent NASA lunar missions. The budget also ends the Gateway Program, with the opportunity to repurpose already produced components for use in other missions. International partners will be invited to join these renewed efforts, expanding opportunities for meaningful collaboration on the Moon and Mars.
Continue the process of transitioning the International Space Station to commercial replacements in 2030, focusing onboard research on efforts critical to the exploration of the Moon and Mars. The budget reflects the upcoming transition to a more cost-effective, open commercial approach to human activities in low Earth orbit by reducing the space station's crew size and onboard research, preparing for the safe decommissioning of the station and its replacement by commercial space stations.
Work to minimize duplication of efforts and most efficiently steward the allocation of American taxpayer dollars. This budget ensures NASA's topline enables a financially sustainable trajectory to complete groundbreaking research and execute the agency's bold mission.
Focus NASA's resources on its core mission of space exploration. This budget ends climate-focused "green aviation" spending while protecting the development of technologies with air traffic control and other U.S. government and commercial applications, producing savings. This budget also will ensure continued elimination of any funding toward misaligned DEIA initiatives, instead designating that money to missions capable of advancing NASA's core mission. NASA will continue to inspire the next generation of explorers through exciting, ambitious space missions that demonstrate American leadership in space.

NASA will coordinate closely with its partners to execute these priorities and investments as efficiently and effectively as possible.

Building on the President's promise to increase efficiency, this budget pioneers a focused, innovative, and fiscally-responsible path to America's next great era of human space exploration.