Spring may have arrived on Earth with a winterish whimper, but what’s happening in the sky is preordained. At 7:02 a.m...

It’s the first day of spring, when day and night are just about equal in length. The moment occurred at 7:02 a.m. Eastern Time today...

With spring imminent—the equinox occurs on Wednesday March 20—many are watching for the profusion of blossoms that erupt over much of Turtle Island this time of year...

At precisely 1:14 a.m. on March 20, the sun passed directly over the equator, marking the vernal equinox and the start of spring...