The vernal equinox is today – that’s the fancy term for the beginning of spring. On Monday, March 20th, at 6:28 a.m., Eastern Daylight Saving Time, the sun will appear at the top of the sky as seen from the earth’s equator. You'd think seasons would start first thing in the morning, but it seldom works out that way. Astronomers plot the sun's position in the sky as it drifts past the background of distant stars due to earth’s revolution. When it reaches a certain spot where the sun's direct rays touch upon the earth's equator, they know that spring has begun. Today the sun is in the constellation Pisces, and it rises due east and sets due west; this is also one of the two times in the year when people pretty much all around the world have roughly equal amounts of daylight and darkness – about twelve hours each. The term equinox, from the Latin meaning "equal night", reflects this phenomenon.