More than 10,000 Ph.D. science experts left U.S. government jobs last year

Key Concepts

• PhD Departure Rate: The significant increase in scientists with doctoral degrees leaving federal government positions.
• STEM Fields: Science, Technology, Engineering, and Mathematics – the areas experiencing the most significant losses.
• Departure-Hire Ratio: The disproportionate rate at which scientists are leaving versus being hired.
• Ripple Effect: The cascading consequences of losing experienced scientists, impacting research quality and program management.
• Reduction in Force (RIFs): Actual firings or forced separations from employment.

Workforce Exodus from Federal Science Agencies

An analysis conducted by Science Magazine, based on data from the White House Office of Personnel Management, reveals a substantial exodus of highly qualified scientists from federal government positions. In 2025, over 10,000 experts holding doctorate degrees in science and related fields departed their roles. This departure rate significantly outpaced hiring, resulting in a net loss of more than 4,200 PhDs specializing in Science, Technology, Engineering, and Mathematics (STEM). STEM is an acronym representing the critical fields of Science, Technology, Engineering, and Mathematics, vital for innovation and national competitiveness.

Agency-Specific Losses

The National Institutes of Health (NIH) experienced the most significant losses, with over 1,100 STEM PhDs leaving the agency. Other agencies heavily impacted include the Food and Drug Administration (FDA), the Centers for Disease Control and Prevention (CDC), and the Environmental Protection Agency (EPA). These agencies represent crucial areas of public health, safety, and environmental protection.

Impact of the Trump Administration’s Policies

Jeffrey Mervis, Senior Correspondent at Science Magazine and co-author of the analysis, attributes a significant portion of these departures to the policies and climate established during President Trump’s administration. While many departures were classified as “voluntary” – through resignation or early retirement – Mervis suggests that fear of potential firings or fundamental disagreements with administration policies were strong motivating factors. He notes that actual “reductions in force” (RIFs), or direct firings, were relatively infrequent. A RIF is a specific term for a workforce reduction initiated by an employer.

Deteriorating Departure-Hire Ratio & Consequences

The departure-hire ratio in 2025 was a stark 11 to 1, meaning eleven scientists left for every one new scientist hired. This imbalance has a “ripple effect,” as described by Mervis. This effect manifests in two primary ways: a reduction in the workforce available to conduct research and a decline in the expertise available to manage research programs and allocate funding effectively. Agencies like NASA, where the average tenure of departing scientists was 20 years, are losing decades of accumulated experience.

Impact on Research Quality & Program Management

Mervis highlights that federal science agencies perform more than just direct research. They also manage complex programs, such as space missions at NASA. Furthermore, agencies like the National Science Foundation (NSF) don’t conduct research themselves but are responsible for funding and overseeing research conducted at universities. The NSF’s scientists are crucial for designing effective funding programs and selecting the most promising research projects. A diminished workforce, particularly one lacking experienced personnel, will inevitably lead to a decline in the quality of both research and program management.

As Mervis stated, “with fewer scientists and less experienced scientists, you’re going to see the quality of the work suffer.”

Lack of Replacement Plans

Currently, there is no publicly known plan from the administration to address this significant loss of scientific talent and restore the departure-hire ratio. This lack of a proactive strategy raises concerns about the long-term health and effectiveness of federal science agencies.

Conclusion

The substantial departure of PhD-level scientists from federal agencies represents a critical challenge. Driven in part by the political climate, this exodus, coupled with a severely imbalanced departure-hire ratio, threatens to undermine research quality, program management, and ultimately, the nation’s capacity for scientific innovation and leadership in STEM fields. The absence of a clear plan to address this issue underscores the urgency of the situation.