I thought it was spring already? Maybe it seemed like it between the unseasonably warm winter temperatures and Punxsutawney Phil's prediction of an early spring. But on March 19, the astronomical ...

These graphics explain why Easter Sunday changes each year based on ancient interpretations of the solar and lunar cycles.

If you have allergies, you know allergy seasons can be rough with the constant sneezing, watery eyes and stuffy sinuses. In the past few decades, scientists have found that seasonal allergens like ...