We will get an "extra" day, February 29.

This pattern will repeat until 2100, when the cycle breaks. Though 2100 is exactly divisible by 4, there is an exception—for years whose number is exactly divisible by 100. (On top of that, there's another exception, for years exactly divisible by 400. So 2400 will be a leap year. Mark your calendars now.)

Where do these quadrennial liberties with our calendar originate?

In the stars, of course.

Celestial Rhythms

Watching the stars, night after night, month after month, year after year, they become old friends. They stay for a season, and then move on. Or rather, we move on—ever advancing around the sun toward next week's deadlines and new constellations.