Spring is here — officially, at least. The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere.

The vernal equinox, which occurs at the start of astronomical spring, is when the sun's rays equally shine on both of the Earth's hemispheres. Thursday marks the vernal equinox, or the first day ...

Every year between March 19 and 21, the Northern Hemisphere experiences a celestial event that has captivated humans for millennia: the Spring Equinox. This moment, when day and night are nearly ...

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 in ...

The vernal equinox heralds the arrival of spring in the Northern Hemisphere (finally). But have you heard the myth about balancing an egg on its end? Freelance writer Amanda C. Kooser covers ...