At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a reactor the size of a small watermelon. Here, scientists with the mining technology startup Still Bright are using a ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a ...

Around 5,000 years ago, people in what is now Iran began turning dull stone into shining metal. By heating copper ore until ...

BEIJING (Reuters) -China's refined copper output is set to hit a record high in 2025, analysts say, as its giant smelting sector powers through a global shortage of copper ore that is forcing some ...

The president exempted a copper smelter in Arizona from air-quality rules. An E.P.A. official guided the company that sought ...

Buried deep in the south Georgia rolling hills, a tiny archaeological site has been rewriting history. Uncovered in the late 1950s, the Kvemo Bolnisi workshop was considered to be one of the ...

Research from Cranfield University sheds new light onto the transition from the Bronze Age to the Iron Age, showing how experimentation with iron-rich rocks by copper smelters may have sparked the ...

A Chinese smelter and Antofagasta plc agreed to set fees for processing copper concentrate at a record low for 2026.