NASA is seriously evaluating the PROMISE mission concept, which repurposes the full-scale engineering testbed of the Perseverance Mars rover for deployment to the Moon’s south polar region. This nuclear-powered rover, equipped with an MMRTG fueled by Plutonium-238, would operate independently of solar power during the two-week lunar night and navigate permanently shadowed craters where water ice resides. The proposal remains a serious consideration rather than a confirmed contract, with launch timelines undefined. The announcement coincided with NASA’s award of nearly $600 million in contracts to Astrobotic, Firefly Aerospace, and Intuitive Machines for four robotic lander deliveries by late 2028 under the Moon Base Program. PROMISE leverages flight-proven Mars hardware to accelerate lunar south pole exploration capabilities.