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National Nuclear Security Administration

US
gov defense
United States
www.energy.gov/nnsa/national-nuclear-security-administration
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All verified mentions of this organization in source documents.

The National Nuclear Security Administration funds the sensors in the Global Burst Detection system.

Mentioned as: National Nuclear Security AdministrationNarrative GeneralSep 22, 2025Sandia + Los Alamos: Space-based nuclear detonation detection mission endures

The JETSON reactor design draws heavily from the 2018 Kilopower Reactor Using Stirling Technology (KRUSTY) demonstration led by NASA and the Department of Energy’s National Nuclear Security Administration.

Mentioned as: National Nuclear Security AdministrationNarrative GeneralNov 16, 2023Lockheed Martin jets into nuclear electrical spacecraft power

STP-3 consists of the STPSat-6 satellite that hosts the National Nuclear Security Administration’s Space and Atmospheric Burst Reporting System-3 (SABRS-3) package and NASA’s Laser Communications Relay Demonstration (LCRD) experiment.

Mentioned as: National Nuclear Security AdministrationNarrative GeneralDec 7, 2021UPDATE 3: The USSF’s STP-3 Mission Launch By ULA Is Successful — The STPSat-6 Satellite Is Released From Earth’s Gravity Via An Atlas V Rocket + Navigates To Orbit

The primary payload, STPSat-6, hosted the National Nuclear Security Administration’s Space and Atmospheric Burst Reporting System 3 (SABRS-3) sensor designed to detect nuclear explosions.

Mentioned as: National Nuclear Security AdministrationNarrative GeneralDec 7, 2021ULA launches STP-3 mission with national security and NASA payloads