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NASA unveiled a sweeping overhaul of its Artemis programme at an "Ignition" event on March 24–25, 2026, pausing the Lunar Gateway orbital station and redirecting hardware and funding to build a permanent lunar base.
Administrator Jared Isaacman said the agency will pursue a three‑phase, roughly seven‑year plan — estimated at about $20 billion — to establish sustained surface operations near the lunar south pole, with an accelerated cadence of landings (annual, moving toward twice‑yearly) and reuse of Gateway components where practical.
The announcement came days before NASA’s targeted crewed Artemis II flyby of the Moon, currently aiming for a launch window beginning April 1, 2026.
Separately, NASA revealed plans for Space Reactor‑1 (SR‑1) Freedom, a nuclear‑electric propulsion demonstrator slated for a 2028 Mars launch to deliver a small fleet of “Skyfall” helicopters to scout subsurface ice.
The shift raises questions about roles for international partners (ESA, JAXA, CSA), contract realignments for US commercial lander suppliers, and technical, regulatory and budgetary risks related to flying fission systems and meeting compressed timelines.
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The discussion clarifies that the announced 'nuclear' capability refers to a spacecraft fission reactor for nuclear‑electric propulsion, not nuclear‑powered helicopters, and that while repurposing Gateway hardware could help, qualifying a flight‑ready reactor is technically difficult and likely to push costs and schedules beyond the stated 2028 goal.





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