Four and a half billion years ago, after Earth’s fiery birth, the infant planet began to radically reshape itself, separating into distinct layers. Metals — mostly iron with a bit of nickel — fell ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. There are some 90+ elements of the periodic table that occur naturally ...

Elements heavier than iron, such as gold and uranium, are primarily formed through neutron capture processes, specifically the rapid neutron capture process (r-process). The r-process, unlike the ...