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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Aug 2026
Jan 2026
2026
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Nuclear Science and Engineering
September 2026
Nuclear Technology
Fusion Science and Technology
August 2026
Latest News
Oklo’s Isotope Test Reactor achieves criticality
Oklo’s Groves Isotope Test Reactor became the fifth Department of Energy–authorized reactor to achieve criticality under the agency’s authorization process, it was announced earlier today.
Criticality was reached at 9:19 p.m. (EDT) on Wednesday at the company’s Groves facility in Lockhart, Texas, according to the DOE.
Technical Session|Space Nuclear Propulsion
Tuesday, May 6, 2025|10:00–11:40AM CDT|SPOC B (Space & Rocket Center)
Session Chair:
Doug Burns (NASA Marshall Space Flight Center)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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Parametric Trade Space Investigation of Particle Bed Reactors for Nuclear Thermal Propulsion
10:00–10:25AM CDT
Jacob Stonehill (AMA), Corey Smith (AMA), Daria Nikitaeva (AMA), Matthew Duchek (AMA)
Paper
Nuclear Design of a Liquid Uranium-Manganese (UMn) Thermal Propulsion Reactor
10:25–10:50AM CDT
Reem Alnuaimi (KAIST), Yonghee Kim (KAIST)
Methane-based Nuclear Thermal Propulsion Engine Considerations
10:50–11:15AM CDT
Daria Nikitaeva (AMA), Corey D. Smith (AMA), Matthew Duchek (AMA)
Presentation Slides (Visible to Attendees)
Design of an Ammonia-fed Nuclear Thermal Propulsion System for Reusable Space-tug in Cislunar Orbits
11:15–11:40AM CDT
Elia Puccinelli (Univ. Pisa), Valerio Giusti (Univ. Pisa), Angelo Pasini (Univ. Pisa)