Winter is coming to a close and spring is about to kick in. So, now is a good time to talk about equinoxes and solstices. With the vernal equinox nearly upon us, here's what we know about when spring ...

The vernal equinox, marking the first day of spring, occurs on Thursday, March 20, 2025, at 5:01 a.m. ET. An equinox happens when the sun's rays are directly over the equator, resulting in ...

Add Yahoo as a preferred source to see more of our stories on Google. The autumnal equinox marks the official goodbye to summer and the hello to fall. Scientifically, it signals the shift toward ...

On Saturday, it may have technically remained summer in Washington, but the worn old season seemed about ready to hand over the keys to autumn, which by tradition and the rules of astronomy begins ...