So riddle me this, what happens twice a year? Some say you can balance an egg only on this day and was a big deal back in ...
Thursday is the spring equinox — when the whole world gets (almost) equal daylight and darkness. Like the solstices, equinox ...
But twice a year, including during the vernal equinox, the sun is directly over the equator, meaning the day and night are about equal lengths. The other time this happens is during the fall equinox.
Spring is in the air, but astronomical spring is only just beginning. This year, spring officially commences on 20 March, ...
Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere. During an equinox, the center of the sun is on the same plane as the equator. After the vernal equinox ...
The spring equinox occurs every March 19, 20 or 21 in the Northern Hemisphere. Here's what happens during the celestial event ...