NASA keeps its PROMISE to raid Mars testbeds for parts

Hardware developed for Mars missions can be repurposed for lunar exploration at a fraction of the original cost.

NASA is repurposing an engineering test model of its Mars rovers, Perseverance and Curiosity, to create a new lunar rover named PROMISE (Polar Rover for Observation, Mapping, and In-Situ Exploration). This initiative aims to significantly reduce costs by utilizing existing hardware. The PROMISE rover is scheduled to land on the Moon's South Pole by late 2028 for an 18-month mission. It will carry scientific instruments, including a drill capable of penetrating one meter into the lunar regolith, and will be powered by a Radioisotope Thermoelectric Generator (RTG) from the retired Cassini mission. Blue Origin has been awarded a contract to deliver the rover, with the total mission cost estimated to be under $400 million. This approach contrasts with previous cost estimates that were significantly higher.

NASA's decision to adapt Mars rover testbeds for lunar missions signifies a growing trend towards cost-efficiency and resourcefulness in space exploration. By leveraging already developed and tested components, the agency can drastically cut down on the immense expenses associated with designing and building new hardware from scratch. This pragmatic approach not only makes ambitious lunar missions more financially viable but also allows for quicker deployment, as evidenced by PROMISE's targeted 2028 arrival.

The successful reuse of complex engineering models, such as those for the Perseverance and Curiosity rovers, suggests a potential blueprint for future space missions across various agencies and private entities. It implies a maturing industry where interoperability and modularity of designs, even across different planetary bodies, are becoming increasingly important considerations. This strategy could accelerate the pace of scientific discovery by freeing up resources that would otherwise be consumed by ground-up development, and may lead to more frequent and diverse robotic exploration of celestial bodies.