The vernal or spring equinox of 2023 happens Monday, March 20. Equinoxes occur when Earth's tilted axis is perpendicular to the sun's rays. During an equinox at Earth's equator, the sun appears almost ...

As the Earth travels around the sun, it does so at an angle. For most of the year, the Earth’s axis is tilted either toward or away from the sun. That means the sun’s warmth and light fall unequally ...

It's that time of year again: the first day of spring. On this special date, the length of the day and night are about the same for most of the planet. The amount of solar energy delivered to the ...

March 20 marks a pivotal shift in the Northern Hemisphere on Earth: Spring equinox 2025 brings forth a fresh season, the sun’s ingress into the zodiac sign Aries, the Pagan holiday Ostara, and the ...

Today, March 20, is the first day of Spring in the northern hemisphere marked by the vernal equinox. The equinox is cool because it's a time of year when the night and day are almost equal. This ...

It's that time of year again: the first day of spring, also known as the spring equinox. On this special date, the length of the day and night are about the same for most of the planet. The amount of ...