The White House wants to cut the National Institutes of Health by 40 percent. The National Science Foundation would lose a third of its funding. NASA’s science directorate would be slashed. The Department of Energy’s Office of Science — the single largest funder of physical sciences research in the United States — would see its budget shrink by more than 30 percent. And the National Oceanic and Atmospheric Administration, the agency that tracks hurricanes and monitors the climate, would be dismantled entirely.
These aren’t hypotheticals. They’re line items in President Trump’s fiscal year 2026 budget proposal, released in late May, and they represent the most aggressive attempt to reshape the federal government’s relationship with scientific research in modern American history. The numbers are staggering in their scope and, for many researchers, terrifying in their implications.
As Ars Technica reported, the proposed budget largely mirrors the so-called “skinny budget” released earlier this year, which itself echoed the deep reductions Trump sought during his first term. The difference now is political context. Republicans control both chambers of Congress. The administration has already demonstrated a willingness to freeze grants, fire federal scientists, and restructure agencies through executive action. The budget isn’t a wish list. It’s a blueprint with teeth.
Start with the NIH, the crown jewel of American biomedical research. The proposed cut would reduce its budget from roughly $47 billion to approximately $28 billion — a reduction of nearly $19 billion. That figure would bring NIH funding to levels not seen since the early 2000s, before the agency’s budget was doubled under a bipartisan effort championed by both parties. The consequences would cascade through universities, medical schools, and research hospitals across all 50 states. NIH grants fund roughly 300,000 researchers at more than 2,500 institutions. A 40 percent cut doesn’t mean 40 percent fewer discoveries. It means entire research programs shuttered, early-career scientists driven from the field, and clinical trials halted mid-enrollment.
The administration frames these reductions as a matter of fiscal discipline and a corrective to what it views as ideological drift within federal science agencies. Budget documents emphasize a desire to refocus NIH on “high-impact” research and eliminate what officials describe as wasteful or politically motivated grants. But the cuts are so broad that they’d inevitably hit cancer research, Alzheimer’s studies, infectious disease preparedness, and the basic science that underpins all of it.
Then there’s the National Science Foundation. The proposal would cut NSF’s budget by roughly a third, reducing it to around $5.8 billion. NSF is the primary federal funder of non-biomedical basic research — mathematics, computer science, engineering, physics, social sciences. It funds the research that doesn’t have an obvious commercial application today but often produces the breakthroughs that drive industries decades later. GPS, the internet, MRI technology — all trace their origins to federally funded basic research of the kind NSF supports.
A 33 percent reduction would force the foundation to fund far fewer grants, extend timelines, and likely eliminate entire program areas. According to Ars Technica, NSF has already been operating under significant strain from earlier funding freezes and staffing reductions imposed during the current fiscal year. The proposed budget would formalize and deepen those cuts.
NASA’s science programs face a similar reckoning. The budget proposes significant reductions to the agency’s Science Mission Directorate, which funds planetary science, Earth observation, astrophysics, and heliophysics. Earth science programs — the satellites and instruments that monitor climate change, sea level rise, and atmospheric composition — appear to be targeted most aggressively. This tracks with the administration’s broader skepticism toward climate research and its decision to remove climate data from government websites.
The proposed elimination of NOAA is perhaps the most symbolically charged element of the budget. NOAA operates the National Weather Service, manages fisheries, runs the nation’s weather satellites, and conducts climate research. The administration’s plan would transfer some of NOAA’s functions — primarily weather forecasting — to other agencies or the private sector, while simply ending others. Climate monitoring and research would be among the casualties.
This isn’t just about money. It’s about institutional capacity.
Federal research agencies take decades to build. The expertise housed within them — the career scientists, the institutional knowledge, the long-running datasets — cannot be easily reconstituted once lost. A satellite program canceled today means a gap in Earth observation data that could last a decade or more. A generation of researchers who leave science because grants dried up won’t come back when funding is restored. The damage compounds.
The scientific community’s response has been fierce but also marked by a kind of exhausted familiarity. Researchers have been sounding alarms since Trump’s first term, when similar cuts were proposed and largely rejected by Congress. The American Association for the Advancement of Science, the Association of American Universities, and dozens of scientific societies have issued statements opposing the reductions. University presidents have lobbied lawmakers. Nobel laureates have written letters.
But the political dynamics have shifted. Congressional Republicans, many of whom defended science funding during Trump’s first term, now face a different calculus. The party’s base has grown more skeptical of academic institutions. The administration has effectively politicized certain categories of research — climate science, diversity-related studies, social science — making it harder for Republican lawmakers to defend agency budgets wholesale. And the broader push for spending cuts to offset tax reductions gives fiscal hawks cover to support reductions they might otherwise oppose.
Still, the budget is a proposal, not law. Congress holds the power of the purse, and appropriators in both parties have historically protected science funding. The question is whether that bipartisan consensus holds under the current political pressure. Some Republican appropriators have already signaled discomfort with the scale of the proposed cuts, particularly to NIH, which funds research in virtually every congressional district. But signaling discomfort and voting against a president’s budget priorities are different things.
The international dimension matters too. China has been increasing its research spending at roughly 10 percent per year. The European Union has committed to expanding its Horizon Europe research program. South Korea, Japan, and India are all ramping up investment in science and technology. The United States still leads the world in research output and Nobel Prizes, but that lead is built on decades of sustained federal investment. Cutting that investment by a third while competitors accelerate theirs is a strategic choice with long-term consequences that extend well beyond the laboratory.
Private sector R&D spending in the U.S. has grown substantially, now exceeding $600 billion annually. The administration has pointed to this as evidence that federal spending can be reduced without harming innovation. But private R&D is overwhelmingly concentrated in applied research and development — refining existing technologies, bringing products to market. It doesn’t replace the basic research that federal agencies fund. Companies don’t typically invest in 20-year research programs with uncertain commercial outcomes. That’s what government does. Or did.
The Department of Energy’s Office of Science, which funds research at 17 national laboratories and hundreds of universities, would see its budget cut by more than 30 percent under the proposal. The office supports research in high-energy physics, nuclear physics, fusion energy, advanced computing, and materials science. Its national laboratories — Los Alamos, Fermilab, Brookhaven, Oak Ridge, and others — are among the most productive research institutions in the world. Reducing their funding at this scale would force layoffs of scientists and engineers, delay or cancel major experimental facilities, and weaken the pipeline of talent that feeds both the defense sector and the technology industry.
Fusion energy research, which has attracted billions in private investment in recent years partly because of foundational work done at DOE labs, would be particularly affected. So would quantum computing research, advanced materials science, and the development of next-generation nuclear reactors. These are areas where the U.S. currently holds significant advantages. Advantages that require continued investment to maintain.
The Environmental Protection Agency’s research programs would also face deep cuts, continuing a pattern from the administration’s first term. EPA’s Office of Research and Development, which conducts studies on air and water quality, chemical safety, and environmental health, would see its budget reduced substantially. The agency has already lost significant staff through buyouts and layoffs earlier this year.
For graduate students and postdoctoral researchers — the people who actually do most of the hands-on work in American laboratories — the proposed budget is more than an abstraction. It’s a career crisis. Federal grants pay their stipends, fund their experiments, and support the labs where they train. A 30 to 40 percent reduction in agency budgets translates directly into fewer positions, fewer opportunities, and a stronger incentive to pursue careers in other countries or other fields entirely. The brain drain isn’t theoretical. It’s already happening. Universities report that international students are increasingly choosing European and Asian institutions over American ones, citing uncertainty about U.S. research funding and visa policies.
And here’s the compounding problem: science operates on long timescales. A clinical trial takes years. A satellite mission takes a decade from conception to launch. A PhD takes five to seven years. The effects of today’s funding decisions won’t be fully felt for years, even decades. By the time the consequences become visible — in lost competitiveness, in missed medical breakthroughs, in degraded weather forecasting — the connection to budget decisions made in 2025 and 2026 will be difficult to draw. That’s what makes science funding cuts politically attractive and scientifically devastating.
The administration’s budget also proposes significant changes to how remaining research dollars would be allocated. There’s an emphasis on applied research with near-term commercial or defense applications, and a corresponding de-emphasis on basic research and social sciences. The budget documents suggest redirecting funds toward artificial intelligence, quantum information science, and biotechnology — but at overall funding levels so reduced that even these priority areas may not see real increases.
Some observers have noted a tension within the administration’s own rhetoric. Officials frequently cite American technological leadership as a national security imperative while simultaneously proposing to defund the research infrastructure that produces it. The contradiction isn’t lost on the scientific community or on the defense establishment, where leaders have repeatedly warned that maintaining technological superiority requires sustained investment in basic research.
Congressional action on the budget will unfold over the coming months. Appropriations committees will hold hearings, mark up spending bills, and negotiate with the White House. History suggests the final numbers will be less severe than the proposal — they almost always are. But “less severe” is relative. Even if Congress restores half the proposed cuts, the result would still represent a historic reduction in federal science spending. And the uncertainty itself causes damage, as researchers delay projects, institutions freeze hiring, and talented people make career decisions based on the signals Washington sends.
The signals right now are unmistakable.
American science has been built over 80 years of bipartisan investment, from Vannevar Bush’s postwar vision of federally funded research to the Human Genome Project to the COVID-19 vaccines developed at record speed with NIH-supported technology. That infrastructure — human, institutional, financial — is not indestructible. It can be weakened, hollowed out, and eventually surpassed. The 2026 budget proposal, if enacted in anything close to its current form, would accelerate that process in ways that may prove irreversible.
The question facing Congress isn’t really about budget numbers. It’s about what kind of country the United States intends to be in 2040 and 2050 — whether it will remain the world’s preeminent scientific power or cede that position to nations willing to make the investments America once considered obvious. The answer will be written not in presidential budget documents but in appropriations bills, and the researchers, students, and institutions watching from laboratories across the country are waiting to see which way it goes.
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