The spring equinox will occur at 5:01 a.m. EDT on Thursday. Here's what to know about the start of the spring season.

The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in ...

As we move further into spring, shedding layers and inhibitions, the hours of daylight we experience will grow until we reach the summer solstice, and the longest day of the year on June 20.