Work

Toward Building Sustainable Mars Infrastructure: A CO 2 ‐Breathing Plasma Thruster for Orbit Maintenance and In Situ Oxygen Generation

Year: 2026

Type: article

Abstract: ABSTRACT This study explores a dual‐use CO 2 ‐breathing plasma thruster capable of operating in very low Martian orbits (80–160 km), delivering electric propulsion and in situ oxygen generation. Experimental results demonstrate a thrust of over 1 N at input powers ranging from 0.1 to 1 kW across varying discharge frequencies. Optical emission spectroscopy reveals strong emission at 777.1 nm corresponding to atomic oxygen, along with spectral features of CO and CO 2 , confirming the effective dissociation of CO 2 within the plasma. These findings support the viability of propulsion systems as multifunctional platforms for future Mars missions, enabling both aerial/ground mobility and human habitats without stored propellant gas.

Source: Global Challenges

DOI: 10.1002/gch2.202500325

Authors: Anmol Taploo, Guru Sankar Duppada, Michael Keidar

Institution: George Washington University

Language: English

Topic: Plasma Diagnostics and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Climate action

Open Access status: gold

Estimated APC paid: $3,810