Chicagohenge is a stunning biannual event that happens during the spring and autumn equinoxes, when the sun aligns perfectly ...

Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere. During an equinox, the center of the ...

An equinox is a phenomenon that occurs twice a year — once during the spring equinox and once during the autumn equinox. In the northern hemisphere, the spring equinox typically falls around March 20, ...

The Vernal Equinox happens Thursday, March 20. This signals the time when the Northern Hemisphere will begin seeing more ...

At the time of the equinoxes, the sun appears to move from one hemisphere to the other. The vernal equinox in March is when ...

NARIT announces that the vernal equinox will occur on March 20, marking the start of spring. The summer solstice will follow ...

The spring equinox marks the start of astronomical spring. The date is determined by the Earth's tilt on its axis as it ...

The spring equinox is a "vital part" of the astronomical calendar as it signals the transition from winter to spring ...

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

The spring equinox occurs every March 19, 20 or 21 in the Northern Hemisphere. Here's what happens during the celestial event ...

The UK will soon see the arrival of spring, which will mean the clocks will be going forward soon. But how long will the country enjoy lighter evenings?