NASA Science Division (40+ Missions Terminated)
(NASA Science)
NASAAstrophysics (Chandra, Fermi terminated); planetary science (Mars Sample Return cancelled); Earth science; heliophysics
Summary
NASA's Science Mission Directorate (NASA Science) funds the agency's astrophysics, planetary science, Earth science, and heliophysics missions, including space telescopes and planetary probes. The FY2027 budget proposes cutting this division by $3.4 billion, a 47% reduction, shifting the freed-up money toward human Moon and Mars exploration and terminating more than 40 science missions in the process.
Who Is Affected
The cuts would terminate operating spacecraft such as the Chandra X-ray Observatory and Fermi Gamma-ray Space Telescope, cancel the Mars Sample Return mission, and end funding for missions like the Magnetospheric Multiscale heliophysics mission and the Landsat Next Earth-observation satellite. Astronomers, planetary scientists, climate researchers, university research teams, and NASA's own science workforce (including staff at Goddard Space Flight Center, which faced a proposed 42% cut) all lose funding, along with early-career scientists who rely on NASA-funded STEM training programs.
What this cut would actually mean
If enacted, working spacecraft that took decades and billions of taxpayer dollars to build and launch, such as Chandra, which has generated more than 10,000 scientific papers since 1999, would simply be switched off years before their scientific usefulness ends. The Mars Sample Return program, the top priority of the last two planetary science decadal surveys, would be cancelled even though rover-collected samples are already staged on Mars, and future Earth-observation data used for weather, agriculture, and climate tracking would be lost when programs like Landsat Next are cancelled.
Why this hits Alabama harder
This cut lands hard on Alabama because Marshall Space Flight Center in Huntsville runs a real Science Research and Projects Division and works on science-related hardware, so a 47% cut to NASA Science ripples straight into the local economy and jobs. Huntsville's economy is unusually tied to NASA compared with most of the country, and reporting shows the city already faces major staff losses from earlier NASA budget cuts tied to this same set of reductions. That makes Alabama's exposure to this specific cut clearly above the national average, even though most of NASA Science funding nationally flows to other centers like Goddard and JPL.
- Proposed major cuts to NASA would likely hit Huntsville heavily — Alabama Reporter piece detailing how the FY budget cuts to NASA, including science funding reductions, are expected to hit Huntsville and Marshall Space Flight Center particularly hard.
- NASA's Workforce Cuts Hit Huntsville: What It Means for Marshall Space Flight Center — Huntsville Chamber of Commerce report noting hundreds of senior staff positions at Marshall Space Flight Center are affected by NASA budget and workforce cuts.
- NASA science budget might recover as lawmakers revisit Trump cuts — Axios Huntsville coverage of the 47% NASA science budget cut and its local Alabama political and economic stakes.
- About Marshall Science - NASA space at 500 the NASA Science Research and Projects Division — NASA page describing the Science Research and Projects Division based at Marshall Space Flight Center in Huntsville, Alabama.
Sources
- NASA budget would cancel dozens of science missions, lay off thousands - SpaceNews — Reports that NASA's science budget would be cut 47%, to $3.9 billion, terminating Chandra, Fermi, and dozens of other missions including Mars Sample Return and Landsat Next.
- You just saved NASA's budget - The Planetary Society — Describes the proposed 47% cut to NASA Science, termination plans for 19 in-flight missions, and the push to remove more than 4,000 civil servants.
- The FY26 President's Budget Request: NASA and NSF Details - American Astronomical Society — Breaks down division-level cuts within NASA Science, including a 66% cut to Astrophysics affecting Chandra, Fermi, and LISA, and staffing cuts at Goddard Space Flight Center.
- New NASA budget would shut down 41 space missions - The Planetary Society — Details how the 47% cut would shut down 41 missions and notes Chandra alone has led to over 10,000 scientific papers.
- Back to work to save science funding! All you need to know about the FY2027 Budget Request - astrobites — Confirms the FY2027 budget request again proposes a 47% cut to NASA's Science Mission Directorate, with division-specific reductions to Astrophysics, Heliophysics, and Planetary Science.
- Mars Sample Return Gets a Lifeline from House Appropriators - SpacePolicyOnline.com — Explains that the Trump Administration's proposal cuts NASA Science Mission Directorate from $7.3 billion to $3.9 billion and terminates Mars Sample Return.
Administration's Stated Rationale
“Earth science and astrophysics missions terminated; focus shifts to Moon and Mars human exploration.”