NASA Weighs Sending 1 Backup Mars Rover to Moon's South Pole as Lunar Base Plans Advance
Updated
Updated · Jalopnik · Jul 6
NASA Weighs Sending 1 Backup Mars Rover to Moon's South Pole as Lunar Base Plans Advance
3 articles · Updated · Jalopnik · Jul 6
Summary
NASA said it is "thinking very hard" about sending PROMISE—the Earth-based backup for its latest Mars rovers—to the Moon's south pole for scouting and resource prospecting.
PROMISE would map the surface and subsurface and look for usable materials, while its high payload capacity and plutonium-powered MMRTG could help it operate through long polar nights.
The move would strip JPL of the test rover used to rehearse risky commands and troubleshoot problems for Curiosity and Perseverance, raising operational risk for both Mars missions.
NASA has made no final decision, but the proposal signals a stronger agency push toward lunar exploration, Moon base preparation and a broader U.S.-China race for the Moon.
Is NASA's pivot to the Moon a brilliant shortcut or a risky gamble that sidelines Mars exploration?
How will NASA protect its Mars rovers without their Earth-based twin for crucial safety tests?
PROMISE to the Moon: NASA’s Nuclear-Powered Rover Proposal for the Artemis South Pole Base (2026 Update)
Overview
NASA is considering sending its PROMISE rover, originally built as a Mars engineering model, to explore the Moon’s south pole. This proposal marks a strategic shift, using proven hardware for new lunar goals. The mission aims to address key scientific questions and supports NASA’s long-term interest in lunar surface operations. PROMISE’s robust design and nuclear power system make it well-suited for the Moon’s harsh environment, where extreme cold and darkness challenge solar-powered missions. By adapting Mars-tested technology, NASA hopes to accelerate lunar exploration, reduce costs, and gather vital data for future Moon base plans.