NASA Administrator Defends Proposed 23% Budget Cut to $18.8 Billion

Key Points

• NASA budget would be cut 23% to $18.8 billion in FY2027
• Cuts affect science, space operations, and technology portfolios
• Isaacman claims NASA still has world's largest space budget
• Nancy Grace Roman Space Telescope and ISS replacement potentially threatened

Full Details

NASA Administrator Jared Isaacman appeared on CNN's State of the Union and other television programs on April 5, 2026, to defend a fiscal year 2027 budget proposal that would cut NASA's topline budget by 23% to $18.8 billion. The proposed cuts would reduce funding for science, space operations, and space technology portfolios. Isaacman argued that NASA still holds the world's largest space budget and the agency should be able to pursue a lunar settlement, create a new Mars spacecraft powered by nuclear propulsion, and launch various science missions including the Nancy Grace Roman Space Telescope. The budget proposal has drawn criticism from various stakeholders and advocacy groups, who say it undermines NASA's recent milestones including the imminent Artemis II lunar flyby. The White House budget also leaves initiatives like a replacement for the aging International Space Station in limbo.