A small, icy moon of Saturn called Enceladus is one of the prime targets in the search for life elsewhere in the solar system ...

Arthritis isn’t a single disease; the term refers to joint pain or joint disease, and there are more than 100 types of arthritis and related conditions. People of all ages, races and sexes live with ...

Learn about the differences between empathy and sympathy. This article also looks at some frequently asked questions.

Sunday is the shortest day of the year north of the equator, where the solstice marks the start of astronomical winter. It’s ...