So why do so many life-forms breathe oxygen? There are probably thousands of kinds of metabolisms, or chemical processes that ...

New observations have revealed early signs of UV light illuminating the cosmos more than 13 billion years ago.

RICHLAND, Wash.-Chemist Zheming Wang, whose research largely focuses on the chemistry underlying radioactive and advanced ...

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...