Plants and microbes are known to secrete enzymes to transform organic phosphorus into bioavailable inorganic phosphorus. Now, researchers report iron oxides can drive the same conversion at comparable ...

A bacterium that uses sulfide as an energy source to metabolize solid iron oxides has been discovered, revealing a biological reaction that was previously assumed to be solely chemical. This finding ...

Ancient copper smelters may have accidentally set the stage for the Iron Age. At a 3,000-year-old workshop in Georgia, researchers discovered that metalworkers were using iron oxide not to smelt iron ...