It's the time when there are roughly the same number of hours of day and night on all parts of Earth, according to NASA. What ...

Easter can fall anywhere from March 22 to April ... which is when the sun is directly above the Earth’s equator and when the day and night are the same length, can happen on March 19, 20 or ...

Easter falls on the first Sunday after the Paschal full moon. The date of Easter is determined by the Paschal full moon, the first full moon that occurs on or after March 21st. While we're still a ...

Forbes contributors publish independent expert analyses and insights. Jamie Carter is an award-winning reporter who covers the night sky.