While many areas of the ocean are rich in other nutrients, they often lack iron -- a critical element for marine life. Dissolved iron in seawater can originate from three main sources: Dust from ...

Can an iron structure stand tall for 1,600 years without rusting, despite being exposed to the elements? It seems implausible, considering the supposed lack of technology at the time of its ...

Iron is the main ingredient in various forms of iron and steel, but the various types of metals contain other elements as well. Sometimes these elements are unwanted; other times they're ...