The first day of spring is marked by the spring equinox, also known as the vernal equinox. The season also brings another ...

Whether the groundhogs saw their shadows or not, here's when the real first day of spring will be, according to NASA.

Thursday is the first day of astronomical spring. Here's what Texas can expect after an unusually cold and snowy winter.

The spring equinox takes place toward the end of March every year. The Earth’s axis tilts neither toward nor away from the sun, and day and night are almost equal in length. It marks the beginning of ...

The Griffith Observatory invited the public to join them on Thursday to welcome the start of spring, also known as the vernal equinox. A popular event, it drew a crowd to this annual moment when ...

March 20 was the first day of spring this year. This day marked the occurrence of the vernal equinox in the northern hemisphere, where the center of the sun is on the same plane as the equator and day ...

Central Indiana is beginning to see subtle signs of spring, such as snowdrops, crocus, daffodils, swelling buds, and returning birds, as the result of a warming trend and increasing daylight.