Survey of industry experts on challenges of lunar ISRU by 2040

Artist impression of ISRU activities on the Moon. Credits: NASA

What do space experts in industry and academia think will be the technical and policy challenges to overcome for a sustainable lunar outpost leveraging ISRU by 2040 to be realized? A survey using the Delphi method has just been completed to answer this question. The results were just released as a pre-proof in Acta Astronautica. Significant contributors in the fields of ISRU technologies, space architecture, power systems, and space exploration participated in the survey.

There was a group consensus that NASA’s Artemis mission returning humans to the Moon would be delayed by at least 2 years from the previous administration’s target of 2024 due to uncertainty in U.S. policy over the next few years. No surprise here. There was also agreement that ISRU processes could add significant power requirements on the order of 1 MW to a lunar base, and that photovoltaic systems were preferred over nuclear power sources because of a “…political distaste for space nuclear power systems”. Of particular note, the survey participants could not reach agreement on the impact that Covid-19 would have on space exploration.

Space nuclear power looking bright

Both fission and fusion nuclear power systems are in development for use in space in the near future. Kilopower, NASA’s fission nuclear reactor we reported on last March has now been renamed the Nuclear Fission Power Project. An update appeared recently in Chemical & Engineering News.

Artist’s concept of NASA’s planned fission power system on the lunar surface. Credits: NASA

On the fusion front, a compact generator is under development by Magneto-Inertial Fusion Technologies, Inc. (MIFTI) a subsidiary of US Nuclear Corporation. In a recent press release the company claims that its staged Z-Pinch reactor may come on line within 5 years, which could potentially be providing power to lunar settlements by the end of this decade. The system may even have enough power to propel hypervelocity space ships shortening trips to Mars.

Schematic of staged Z-Pinch fusion system. Credits: MIFTI