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Idaho National Laboratory

US

Idaho National Laboratory (INL) is a U.S. Department of Energy national laboratory focused on nuclear energy research and development. Within the space industry, INL's Space Nuclear Power and Isotope Technologies Division assembles and tests Radioisotope Power Systems (RPS) at its Materials and Fuels Complex. These RPSs, fueled with plutonium-238, provide reliable power for deep-space missions, including those of NASA, where alternative power sources like solar panels are insufficient. INL also works with Oak Ridge National Laboratory to produce plutonium-238.

gov civil
Idaho, United States
www.inl.gov/
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All verified mentions of this organization in source documents.

CoLab helps Idaho National Laboratory teams assign reviewers to technical data packages and track comments and action items across documents, drawings, and models.

CapabilityValue 3.5May 19, 2026From Design Reviews to Decision Intelligence: CoLab Rewires Engineering Workflows

Idaho National Laboratory, Oak Ridge National Laboratory, and Los Alamos National Laboratory hold institutional expertise in reactor physics, fuel fabrication, and safety analysis for space nuclear power.

CapabilityGeneralValue 3.0Apr 23, 2026Space Reactor-1 Freedom

The Idaho National Laboratory released a report titled "Weighing the Future: Strategic Options for U.S. Space Nuclear Leadership" that outlines three paths for U.S. space nuclear leadership.

PlanGeneralValue 2.0Mar 8, 2026A UK Launch Company in Crisis, and NASA Taps a Fresh Face for the Sixth Private ISS Mission

The Idaho National Laboratory operates the Transient Reactor Test Facility and can conduct testing of nuclear propulsion reactor fuels and host new reactor technologies on-site.

CapabilityValue 4.2Feb 16, 2026How the U.S. Could Achieve Energy Dominance in Space

The Idaho National Laboratory produced a report titled "Weighing the Future: Strategic Options for U.S. Space Nuclear Leadership."

GeneralValue 2.0Feb 16, 2026How the U.S. Could Achieve Energy Dominance in Space

The Idaho National Laboratory serves as the lead national laboratory supporting space reactor efforts and coordinates across multiple national laboratories to develop technologies, capabilities, and infrastructure for space reactors.

CapabilityGeneralValue 2.6Feb 16, 2026How the U.S. Could Achieve Energy Dominance in Space

The Myers and Lal report for Idaho National Laboratory states that the U.S. has spent nearly $20 billion in constant-year dollars on space nuclear programs such as NERVA and Prometheus.

FinancialGeneralValue 4.0Jul 21, 2025Making a new case for space nuclear power

A study for Idaho National Laboratory by Roger Myers and Bhavya Lal found the United States spent nearly $20 billion in constant-year dollars on space nuclear programs such as NERVA and Prometheus.

FinancialGeneralValue 3.8Jul 21, 2025Making a new case for space nuclear power

Ultra Safe Nuclear won a contract from the Idaho National Laboratory last year to develop a nuclear thermal propulsion reactor concept for a NASA space exploration mission.

RelationshipsPlanValue 4.0May 17, 2022DIU selects nuclear-powered spacecraft designs for 2027 demonstrations
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