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

Easter is a moveable feast - it can happen anytime between March 22 and April 25. It is set using a mathematical calculation of the lunar and solar cycles.

April's full moon, known as the Pink Moon, will be visible this week. This year's Pink Moon is also the Paschal Moon, which determines the date of Easter. A full "pink" moon will soon be visible ...

There's a lot of action in the skies tonight. The full pink moon rises tonight and will be made more special as NASA has scheduled its launch of Artemis II, the first 10-day moon mission since 1972.

Easter 2026 falls on April 5. Here’s a complete guide to Good Friday, Palm Sunday, and how Easter is calculated using lunar cycles.

Is today Good Friday, and is Good Friday 2026 a federal holiday? When is Easter this year? What we know on Good Friday, Easter Sunday, Lent's end and more.