In years evenly divisible by 4 (but not evenly divisible by 100 unless they’re also evenly divisible by 400) those of us who use the Gregorian calendar get a February with an extra day. Today is such a day. Whatever else we’re doing today, we’re also busily keeping our calendar in sync with the heavens.
And there is no better day than this Leap Day to contemplate, with some merriment, the ‘jump’ photos done by Phillipe Halsman.
A decent explanation and a start is here. Then just type ‘phillipe halsman jump’ into your web search engine of preference, and you’re off.
Happy Leap Day.