During a state visit, the Chinese and Russian leaders cast themselves as a stabilizing force in a world thrown into tumult by Washington. By David Pierson and Paul Sonne Outmatched militarily, Iran ...

The rules were established by the Biden administration after research linked the compounds to a range of serious health problems. By Lisa Friedman Renewable energy has helped make the worst-case ...

A deadly hantavirus outbreak occurs on a cruise ship, scientists warn that microplastics may be contributing to climate warming, and a retreating-glacier‑triggered landslide unleashed a massive Alaska ...

Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. This discipline includes fundamental research on the biochemistry, physiology, cell biology, ...