Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. What day is the first day of spring 2026? Friday, March 20, ...

The cycle of the seasons is not symmetrical, and it does not at all mirror the progression of the solstices and equinoxes. The vernal equinox was Monday. The mean temperature (average of low and high) ...

Twice a year, the sun doesn’t play favorites. Everyone on Earth is seemingly on equal status – at least when it comes to the amount of light and dark that they get. On Monday, we enter our second and ...

While the weather is still warm almost everywhere and the leaves have yet to turn, fall is almost here. The official arrival of the season is the autumnal equinox, which occurs in the Northern ...

Peak sunshine has arrived in the Northern Hemisphere — the summer solstice. Friday is the longest day of the year north of the equator, where the solstice marks the start of astronomical summer. It's ...

For many people in the US, winter arrived early. Blisteringly cold temperatures have colored the landscape white or gray, even though it still isn't officially winter yet, and won't be until Sunday ...