NASA will recycle Mars rover hardware for a Moon scout built to work in the dark

A Mars testbed gets a lunar assignment

NASA is moving ahead with PROMISE, a nuclear-powered rover designed to investigate the Moon’s south pole using hardware originally built for Mars exploration. The agency announced the decision on November 7 and is targeting a late-2028 launch and an 18-month primary mission.nasa +1

The six-wheeled rover will combine parts from engineering test models and flight spares associated with the Curiosity and Perseverance Mars missions. NASA’s Jet Propulsion Laboratory will convert the body, mobility system and electronics of Curiosity’s ground-based duplicate, adding other components from both rover programs.nasa +1

NASA first floated the lunar mission as a possibility in June. The new announcement commits the agency to moving forward; it does not mean the rover has been built or launched.scientificamerican +1

Power for the dark

PROMISE will use a spare radioisotope generator, which converts heat from radioactive decay into electricity. Unlike a solar-powered rover, it is designed to operate during long lunar nights and in permanently shadowed regions, where scientists suspect ice has accumulated.nasa +1

Those shadows are a major reason to go—and a practical obstacle. Spacecraft have detected water ice in polar regions where crater walls block sunlight, but the cold and lack of direct light complicate exploration. Water could eventually be useful for drinking, breathable oxygen or propellant, though finding it does not establish that it can be extracted economically.planetary

Drilling for evidence

The rover’s drill is designed to bring up material from as deep as one meter, in 10-centimeter increments. A mass spectrometer will analyze volatile compounds released from those samples, while a near-infrared instrument will look for ice and characterize minerals. A neutron spectrometer will search for hydrogen beneath the surface.nasa

PROMISE will also measure radiation and temperatures, map terrain with cameras, and test autonomous navigation using lidar and radiation-tolerant computing. The rover’s interaction with lunar soil will help engineers assess the terrain for future missions.nasa

The delivery still lies ahead

NASA selected Blue Origin’s Mark 1 lander to deliver PROMISE under a $94 million base award, with a further $140 million performance-based option. Both the late-2028 launch and the proposed 18-month mission remain plans; the rover must first be assembled, tested and delivered to the Moon.nasa