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ScienceQuiet 11d · day 14

HKUST scientists unveil yeast-gelatin material for 3D-printing Mars houses

Hong Kong researchers freeze-dry a sand, gelatin and engineered-yeast mix into a concrete-like foam meant for future Martian construction.

newest coverage 10d agosummary written 12d ago22 pieces12 likes & upvotes6 comments MastodonNewswiresGoogle NewsHacker NewsReddit

What to know

  • HKUST researchers created a sand-gelatin-yeast composite that freeze-dries into a porous, concrete-comparable foam, published in Chem Circularity.
  • The process needs far less energy than prior Mars/Moon construction methods that melt regolith or rock.
  • Current prototypes are only wine-cork/45mm-sized domes; scaling up and yeast survival on Mars remain open questions.

Jishen Qiu Civil engineer, study co-author, HKUST

HKUST scientists unveil yeast-gelatin material for 3D-printing Mars houses
popsci.com

How it unfolded 3 developments, newest first · click a bar or a number to jump articlesposts

Peak 11 pieces in 4h at Sep 11, 10 AM; 22 pieces over 14 days (17 articles · 5 posts) Sep 10, 10 AM — 3 pieces · 2 articles · 1 post — Google News 1, Mastodon 1, Newswires 1Sep 10, 2 PM — 2 pieces · 2 articles — Google News 2Sep 10, 6 PM — quietSep 10, 10 PM — quietSep 11, 2 AM — quietSep 11, 6 AM — 1 piece · 1 post — Mastodon 1Sep 11, 10 AM — 11 pieces · 11 articles — Google News 10, Newswires 1Sep 11, 2 PM — quietSep 11, 6 PM — quietSep 11, 10 PM — 1 piece · 1 article — Google News 1Sep 12, 2 AM — 1 piece · 1 post — Mastodon 1Sep 12, 6 AM — quietSep 12, 10 AM — quietSep 12, 2 PM — quietSep 12, 6 PM — quietSep 12, 10 PM — quietSep 13, 2 AM — quietSep 13, 6 AM — 3 pieces · 1 article · 2 posts — Hacker News 1, Reddit 1, Newswires 1Sep 13, 10 AM — quietSep 13, 2 PM — quietSep 13, 6 PM — quietSep 13, 10 PM — quietSep 14, 2 AM — quietSep 14, 6 AM — quietSep 14, 10 AM — quietSep 14, 2 PM — quietSep 14, 6 PM — quietSep 14, 10 PM — quietSep 15, 2 AM — quietSep 15, 6 AM — quietSep 15, 10 AM — quietSep 15, 2 PM — quietSep 15, 6 PM — quietSep 15, 10 PM — quietSep 16, 2 AM — quietSep 16, 6 AM — quietSep 16, 10 AM — quietSep 16, 2 PM — quietSep 16, 6 PM — quietSep 16, 10 PM — quietSep 17, 2 AM — quietSep 17, 6 AM — quietSep 17, 10 AM — quietSep 17, 2 PM — quietSep 17, 6 PM — quietSep 17, 10 PM — quietSep 18, 2 AM — quietSep 18, 6 AM — quietSep 18, 10 AM — quietSep 18, 2 PM — quietSep 18, 6 PM — quietSep 18, 10 PM — quietSep 19, 2 AM — quietSep 19, 6 AM — quietSep 19, 10 AM — quietSep 19, 2 PM — quietSep 19, 6 PM — quietSep 19, 10 PM — quietSep 20, 2 AM — quietSep 20, 6 AM — quietSep 20, 10 AM — quietSep 20, 2 PM — quietSep 20, 6 PM — quietSep 20, 10 PM — quietSep 21, 2 AM — quietSep 21, 6 AM — quietSep 21, 10 AM — quietSep 21, 2 PM — quietSep 21, 6 PM — quietSep 21, 10 PM — quietSep 22, 2 AM — quietSep 22, 6 AM — quietSep 22, 10 AM — quietSep 22, 2 PM — quietSep 22, 6 PM — quietSep 22, 10 PM — quietYesterday, 2 AM — quietYesterday, 6 AM — quietYesterday, 10 AM — quietYesterday, 2 PM — quietYesterday, 6 PM — quietYesterday, 10 PM — quietToday, 2 AM — quietToday, 6 AM — quiet 12–3
Sep 11Sep 12Sep 13Sep 14Sep 15Sep 16Sep 17Sep 18Sep 19Sep 20Sep 21Sep 22now · 8:50 AM ET
  1. 3

    Coverage widens to describe 'yeast and jello' Mars houses

    Outlets including The Register and Popular Science pick up the study, framing the low-energy 3D-printing method and its potential for turning Martian dirt into sturdy structures.

    • us@pubeurope.com

      https://www. europesays.com/us/1058820/ Mars astronauts could live in houses made of yeast and jello, say scientists # Science # UnitedStates # UnitedStates # US

      us@pubeurope.comMastodon12d agoview on Mastodon ↗
  2. 2

    Test domes show concrete-comparable strength

    Reporting details the process: the sand-gelatin-yeast mixture is extruded through a nozzle into cold, near-vacuum conditions where it freeze-dries into a porous foam; current test domes are only 45 mm tall but reach 10–12 megapascals of compressive strength, comparable to low-grade concrete.

    “So far the test domes are only 45 mm tall, but the material reaches 10 to 12 megapascals in compressive strength, comparable to low-grade concrete.”
    — tksst@fediscience.org
    • tksst@fediscience.org

      🍞 NEW: Engineers in # HongKong mixed a simulated Martian rock with gelatin and engineered # yeast whose cells carry adhesive # proteins . Pushed through a nozzle into cold, near-vacuum conditions, the mixture freeze-dries into a porous foam. So far the test domes are only 45 mm tall, but the material reaches 10 to 12 megapascals in compressive…

      tksst@fediscience.orgMastodon13d agoview on Mastodon ↗
  3. 1

    HKUST team publishes yeast-gelatin Mars building material study

    Jishen Qiu and collaborators detail a 3D-printable sand-gelatin-yeast composite in the journal Chem Circularity, inspired by the hardening seen in freeze-dried fruit.

    “My inspiration came from freeze-dried fruits that become harder. So I asked myself if we can take advantage of that and make some materials…”
    — Jishen Qiu
    1. 2 outlets Mars astronauts could live in houses 3D-printed from freeze-dried yeast

      first by Popular Science, 12d ago · also Labcompare

      1 more headline
    2. 1 outlet Plan to 3D print houses on Mars after scientists inspired by freeze-dried fruit

      first by IslanderNews.com, 12d ago

Also covered reported alongside — the timeline has no entry for these yet

  1. 5 outlets Scientists hope to build houses on Mars using yeast and gelatin

    first by Chronicle-Tribune, 12d ago · also Google News · Science, HN Frontpage, The Register, The Conway Daily Sun

    2 more headlines
  2. 2 outlets Scientists develop yeast-based material to 3D print houses on Mars

    first by Interesting Engineering, 13d ago · also EurekAlert!

    1 more headline

and 1 smaller piece

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