The winter solstice, or hibernal solstice, occurs when either of Earth 's poles reaches its maximum tilt away from the Sun. This happens twice yearly, once in each hemisphere (Northern and Southern).

1 day ago · The Ursids this weekend are a winter solstice light show. By Katrina Miller Our universe might be chock-full of cosmic wonder, but you can observe only a fraction of astronomical …

Sep 21, 2017 · The winter solstice is the shortest day and longest night of the year. In 2024, in the Northern Hemisphere, it takes place on December 21.

Dec 11, 2025 · At the winter solstice, the sun travels the shortest path through the sky, resulting in the day of the year with the least sunlight and therefore, the longest night.

6 days ago · The winter solstice is the day with the fewest hours of sunlight throughout the year, making it the shortest day of the year. Thankfully, after we reach the winter solstice, the days begin to grow …

Astronomical winter begins at the winter solstice, which is the shortest day of the year. This means days get longer during winter—very slowly at first, but at ever-larger daily intervals as the March equinox …

1 day ago · The winter solstice is here! Here's what to know about the shortest day and longest night of the year.

Dec 8, 2025 · December 21 (or December 22) is the shortest day of the year in the Northern Hemisphere. On this day, known as the winter solstice, the Sun in the sky is the farthest south and …

Dec 21, 2025 · The winter solstice, which marks the first day of winter 2025, occurs on Sunday, December 21, 2025, 10:03 a.m. EST (for the Northern Hemisphere). Learn what causes this change …

11 hours ago · Bottom line: Happy solstice! The 2025 December solstice will fall on December 21. It’s the shortest day for the Northern Hemisphere. And it’s a great time to celebrate the seasons.