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 …

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 …

Dec 11, 2025 · The winter solstice has long marked a time of rebirth, behind it are fascinating astronomical events.

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 …

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

3 days ago · The winter solstice falls can fall between Dec. 20 and 23 — this year it’s the 21st. The opposite happens at a Northern Hemisphere summer solstice: The upper half of the Earth …

6 days ago · Winter solstice 2025 is coming on December 21 in the Northern Hemisphere — learn the science and culture behind the shortest day of the year.

Dec 10, 2025 · Astronomical winter begins Sunday, Dec. 21 in the Northern Hemisphere. Here's how the solstice works.

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.

1 day ago · The 2025 winter solstice happens on Sunday, Dec. 21, bringing the longest night and marking the start of astronomical winter. Here’s how it all works and what it means.