Graduate student working at FRIB. Find out more

Welcome to FRIB

The Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU) is a world-unique research laboratory, hosting the most powerful rare-isotope accelerator. MSU operates FRIB as a user facility for the U.S. Department of Energy Office of Science (DOE-SC), with financial support from and furthering the mission of the DOE-SC Office of Nuclear Physics. FRIB is where researchers come together to make discoveries that change the world. They study the properties and fundamental interactions of rare isotopes and nuclear astrophysics and their impact on medicine, homeland security, and industry.

Research areas

FRIB advances nuclear science by improving our understanding of nuclei and their role in the universe, while also advancing accelerator systems.

Explore FRIB research areas

Capabilities

In establishing and operating FRIB, capabilities were developed that transfer to other industries and applications.

Explore FRIB capabilities
View all news
GRETA
Heiko Hergert and Steve Lidia A graphic with the U.S. Genesis Mission logo

User facilities

FRIB hosts the most powerful heavy-ion accelerator and enables discoveries in rare isotopes, nuclear astrophysics, fundamental interactions, and societal applications like medicine, security, and industry.

Explore FRIB user facilities

Learn more about upcoming events taking place at FRIB. 

View all events
  • 21 October 2026
  • 3:30 EDT
From Few-Nucleon Systems to Complex Nuclei
  • 23 October 2026
  • 2:00 EDT
Weak Interactions and Transport in Neutron Star Mergers Neutron star mergers are among the most extreme events in the Universe, providing a unique laboratory to study matter at densities and temperatures inaccessible on earth. While much of our understanding of these events relies on the properties of matter in equilibrium, the rapid dynamics of a merger can drive matter far from equilibrium. In this talk, I will discuss how weak interactions govern the restoration of chemical equilibrium and how transport processes influence the evolution of neutron star mergers and their observable signals. I will also introduce the nucleon width approximation (NWA), a new approach to calculating weak interaction rates in dense nuclear matter, and its advantages compared to old methods.
  • 23 October 2026
  • 3:00 EDT
Beam Intensity Challenges and the Road to First Beam in the EIC TBD
Training the next generation

Education & training

FRIB at MSU is a world-unique research laboratory where students and researchers from all career stages and backgrounds come together to make discoveries that change the world.

Explore FRIB training

External news and journal publications discussing FRIB.

View all articles
  • 26 September 2026
  • Nature Communications

Researchers have resolved a long-standing discrepancy in measurements of nuclear size in rare-earth elements, providing new insights into how nuclear charge radii change between neighboring elements. The study, published in Nature Communications, included FRIB faculty member Witek Nazarewicz and found that current nuclear theory cannot fully explain the unexpectedly large differences observed, providing new constraints for future experimental and theoretical studies.

https://www.nature.com/articles/s41467-026-77471-7
  • 17 September 2026
  • Phys.org

A research team has reported the first experimental investigation of a nuclear physics reaction essential for understanding how the element strontium is produced in stars—specifically in stellar environments where traditional explanations for its formation fall short. The project was led by Caley Harris, a former graduate student at FRIB. 

https://phys.org/news/2026-09-krypton-narrow-key-gap-stellar.html
  • 1 August 2026
  • Interesting Engineering

A next-generation nuclear detection system that could aid US national security efforts has logged its first operational measurements in Michigan. The Gamma-Ray Energy Tracking Array, known as GRETA, recently completed its initial characterization run at Michigan State University. Located at FRIB, the instrument met all primary performance targets during early beam testing.

https://interestingengineering.com/science/powerful-us-nuclear-detector-takes-f…
  • 4 March 2026
  • Lansing State Journal

Michigan State University's K500 Chip Testing Facility, inaugurated in February at FRIB, cost approximately $14 million to establish, with funding provided by the U.S. Department of Defense. The project repurposed the campus' K500 superconducting cyclotron, completed in 1982 for high-energy, heavy-ion research, including producing and accelerating ion beams to study nuclear structure, to now allow the facility to test semiconductors for space, defense and on-Earth applications.

https://www.lansingstatejournal.com/story/news/local/campus/2026/03/04/msu-micr…