Earth formed within such a precise “Goldilocks zone” for oxygen that a 5% change would have prevented life from emerging.

A new approach reveals unexpected ways oxygen can bind to rare metals. Iron plays a central role in how the body uses oxygen. In hemoglobin, it binds dioxygen, a pair of oxygen atoms, allowing blood ...

On the far right side of the periodic table, just beneath oxygen, sits a lesser-known group of elements called the chalcogens ...

Penn State quarterback Drew Allar was among the latest draft prospects hosted by the Pittsburgh Steelers for an official visit. Allar joined Arizona cornerback/safety Treydan Stukes as guests at UPMC ...