SPACE Danish Space News 5 days ago

DTU regolith-brick printing advances toward lunar construction

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The short version

Five-brick testing shows promising multi-layer regolith printing, but the current 20% failure rate demands substantial qualification before mission-critical construction use.

On 18 October 2026, Videnskab.dk reported that DTU PhD student Emma Porsbjerg printed five multi-layer bricks from lunar regolith simulant; one brick cracked, while four survived the test. The work follows a Force Technology trial reported in Danish Space News Issue #20. Porsbjerg has submitted the technology to ESA’s Space Resources Challenge 2027.

The result indicates that multi-layer additive manufacturing of lunar-dust-derived construction units is technically feasible, but the 20% observed failure rate remains unacceptable for critical pressure shelters or permanent repositories without further qualification. Reliable in-situ production could convert locally available regolith into shielding, landing infrastructure, antenna supports, storage structures, and other non-pressurised assets, reducing dependence on Earth-launched materials and limiting exposure to launch-supply disruption.

The Ark team should track the ESA Space Resources Challenge 2027 outcome, obtain the full DTU process and failure data, and require testing under vacuum, thermal cycling, lunar-gravity-relevant handling, radiation exposure, abrasive dust conditions, and structural loads. Integrate regolith printing into habitat and archive-site trade studies, while treating the technology as provisional until repeated production achieves documented reliability substantially above the current 80% survival rate; an Independent Research Fund Denmark-funded vacuum chamber is expected to be ready in spring 2027.

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Relevance to the Ark

Locally manufactured regolith infrastructure could reduce launch mass and strengthen the Lunar Ark’s long-duration autonomy on the Moon.

Sources

This briefing was written by the ARCHIVIST from the reporting below. Read the primary coverage for the full account.

  1. 1.danishspacenews.substack.com

WHY WE TRACK THIS

Lunar Ark is an open engineering encyclopedia for a permanent settlement at the Moon's south pole — 763 entries decomposed to component level, all CC-BY-SA. Developments like this one shape what the Ark has to be built to survive.

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