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White House orders NASA, Pentagon and DOE to develop space nuclear power systems for first launches as soon as 2028

A White House policy released April 14 directs NASA, the Pentagon and the Department of Energy to develop space nuclear power systems with an earliest launch target of 2028. NASA’s goal is to field a nuclear-reactor-powered interplanetary spacecraft capable of a Mars-bound mission by the end of 2028—widely viewed as highly ambitious.

Discovered 2026-04-14T05:15:00.462075-07:00 | 2026-04-14T05:15:00.462075-07:00

Briefing

What Hype is tracking

The directive formalizes a fast-track pathway for nuclear power in deep-space missions, setting a hard schedule that will shape systems engineering, component qualification, and mission integration priorities—building on prior U.S. nuclear reactor propulsion test momentum in nuclear reactor hardware testing for spacecraft propulsion.
Coupling NASA, the Pentagon and DOE under one policy accelerates cross-agency alignment between civil exploration needs and national security implications for space power—context that follows recent nuclear reactor plans for sustained lunar operations in NASA and DoE pursue lunar fission reactor to power Artemis surface bases.
For industry, the end-2028 Mars objective raises the stakes on supply chains and delivery readiness for space-grade nuclear power subsystems, especially as NASA concurrently reorients architectures like it did when unveiling a Mars power demonstration concept in NASA shelves Lunar Gateway, pivots to ~$20B Moon base and unveils nuclear Mars demonstrator for 2028.

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