Editor in Chief Nancy Shute reflects on the renewed specter of nuclear conflict to record-breaking heat driven by human-caused climate change.

A century ago, physicists laid the foundation of quantum mechanics. Today, with greater control of quantum systems, scientists are making major leaps in ...

Experts worry the warning on vaginal estrogen menopause treatments is doing more harm than good and is not supported by science.

Some people’s biology may set them up to birth babies of a certain sex, explaining why a family with multiple children may have all girls or all boys.