Twin Metals, the company hoping to build an underground copper-nickel mine in the same watershed as the Boundary Water Canoe Area Wilderness, no longer plans to store its tailings behind a dam and ...

Your donation today will help MinnPost continue to report on the news you need. The safety of storing mining waste in a tailings basin has been a critical part of the debate over copper-nickel mining ...

Architects and front end designers usually leave the back end to the physical designers: they know there can be different numbers of metal layers, but may not realize the characteristics of each metal ...

Researchers have found a way to 3D print structures of copper and gold, by stacking microscopically small metal droplets. These droplets are made by melting a thin metal film using a pulsed laser. 3D ...