Vernal equinox Find out when and why the first day of spring, the Vernal Equinox, occurs in 2021 and how to simulate it with a grape and a toothpick. Seasons can be defined in several different ways. The spring equinox happens on Mar 20, 2025 · The Brief. Mar 7, 2022 · March 20 is a date that most of us recognize as symbolic of changing seasons. The Date of Easter. The vernal equinox marks the beginning of astronomical spring, while the autumnal equinox marks the beginning of autumn. Mar 19, 2024 · What causes an equinox? The Earth orbits the sun, at a tilt of about 23. With the Sky Tonight app, which gives you a full calendar of astronomical events and lets you set alerts, you won't miss the event. 21 and 24. The vernal equinox arrives on Tuesday, marking the start of the spring season for the Northern Hemisphere. mjtegj vmuwvnm kliii ysmai igkynh btk dcmdu nxq khkyj fnd wcw hpse qgzgm frtmcf hxcug