Researchers propose Mars Seed bioplastic habitat architecture for Mars missions

The authors say biological in situ resource use can match Earth-shipped supplies on mass and power, offering a practical way to meet the enormous material demands of crewed Mars missions and permanent habitation.

Researchers submitted the Mars Seed reference architecture to arXiv on Nov. 9, 2026, proposing to make human habitat materials on Mars from bioplastic produced entirely from Martian resources, and Astrobiology Web reported on Nov. 12, 2026, that the architecture aims to cut the enormous mass and volume of supplies crews must launch from Earth for initial crewed missions and permanent settlements.

The Mars Seed paper proposes making habitat bioplastics entirely from Martian resources, but its authors say no current mission architecture has measured whether biological in situ resource use can supply settlement-scale needs.

The paper presents Mars Seed as an end-to-end reference architecture for producing bioplastics at scale entirely from in situ resources on Mars. The system generates feedstocks from Martian materials, converts them biologically into polyhydroxybutyrate, or PHB, and purifies the product into material suitable for constructing human habitats. PHB is a bioplastic. The authors present Mars Seed as a complete production pathway rather than a single piece of equipment, covering every step from raw resource to finished construction-grade material.

The paper lists nine authors: Devon A. Stork, Harley Greene, Una Nattermann, Tom Pedersen, Nathan D. Hicks, Max G. Schubert, Fatima R. Martin, Edward Sukarto, and Erika A. DeBenedictis. The arXiv record lists Erika DeBenedictis as the submitting author under identifier arXiv:2611.13064, and the arXiv record places the work in instrumentation and methods for astrophysics and Earth and planetary astrophysics. The submitting author is among the nine co-authors listed on the paper.

The authors state that human Mars exploration will require enormous quantities of material, making scalable in situ resource use, including biological ISRU, significant. ISRU means using local materials instead of bringing them from Earth. The paper frames settlement-scale material demand as the driver for flexible, local-resource technologies rather than reliance on cargo launched from Earth, and it treats ISRU, including the biological kind, as the answer to that demand. The authors say this motivation comes from the scale of material needed for both initial missions and lasting settlement.

The Mars Seed analysis shows that the system recovers upfront power and upmass costs for deploying the bioprocess equipment within two synodic periods compared with Earth-shipped alternatives. The authors present this cost recovery as evidence that the approach is mass- and power-competitive with shipping materials from Earth. A synodic period is the interval between favorable Earth-to-Mars transfer opportunities. The payback calculation measures the initial investment in power and launch mass against the alternative of launching all habitat materials from Earth.

Because Mars Seed relies entirely on feedstocks from Martian materials, production can continue until equipment failure without requiring more materials from Earth. The authors say this supports scalable conversion of local Martian resources into useful materials without continued Earth resupply. The system can run as long as the equipment remains functional, drawing only on what is already present on Mars. This removes the need for repeated delivery of feedstock from Earth once the equipment is operating.