Engineers have created an intriguing concrete alternative using simulated Martian or lunar soil, potato starch and salt. The "space concrete" is twice as strong as conventional concrete, the ...

A photobioreactor, which looks like a large vat of blue liquid with pink light shining, at Prometheus Materials. Stimulated by light, microbes in this bioreactor multiply and react carbon dioxide with ...

Cement—the essential binding ingredient in concrete, bricks, and mortar—is a climate nightmare. To make it, you heat limestone and clay to extremely high temperatures using carbon-polluting fossil ...

Researchers have turned concrete from a demolished school building and carbon dioxide (CO2) from the air into new blocks strong enough to build a house with. The process involved grinding the old ...

Unless you are a particular kind of architecture nerd, you probably never think about concrete. The ancient building material is dull, heavy, and gray — not exactly inspiring. It forms the world’s ...