As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

On the vernal equinox in March and the autumnal equinox in September, the equator (0 degrees latitude) is aligned directly with the Sun. Therefore, everywhere on Earth experiences an equal 12 ...

Meteorologists consider March 1 the start of spring. An equinox occurs twice a year. The autumnal equinox occurs in September – when the Earth's axis is tilted neither toward nor away from the ...

In the Northern Hemisphere, the vernal or spring equinox, typically occurs between March 19 and 21, while the autumnal or fall equinox occurs between September 21 and 24. The names are switched for ...

The vernal equinox marks the start of spring every March. The autumnal equinox marks the start of fall every September. An equinox occurs, "two times of the year when the Earth's axis is tilted ...

In March, Northern Hemisphere observers welcome ... cooler nights - signaled by their autumnal, or fall, equinox. Come September, the reverse is true. A full disk view of the earth from GOES ...

According to folklore, you can only balance an egg upright on two days out of the entire year, once on the day of the March equinox and a second time on the September equinox. The belief relies on ...

Ready for the first day of spring? What we know about the 2025 spring equinox, the autumnal equinox, summer and winter solstices and more.

The spring equinox can happen between March 19 and March 20. The longest day of the year, the summer solstice, arrives June ...

Meteorologists consider March 1 the start of spring. An equinox occurs twice a year. The autumnal equinox occurs in September – when the Earth's axis is tilted neither toward nor away from the ...