Move over, Calculator. The Messages app can tackle advanced calculations and even convert numbers to different formats.

Stronger links between researchers who work on Earth’s and other planets’ atmospheres, and between the experimental, ...

Body mass index (BMI) is a number based on height and weight that can help estimate whether someone is at a healthy weight. For most adults, BMI is a useful guide, but it doesn’t tell the whole story.

The 405-month eclipse table had emerged from a lunar calendar in which the 260-day divinatory calendar commensurated the lunar cycle,” the authors wrote.