The winter solstice is the shortest day of the year, and marks the beginning of winter in the Northern Hemisphere. It occurs when the North Pole is tilted the farthest away from the sun, resulting in the longest period of darkness and the shortest period of daylight. In the Southern Hemisphere, the winter solstice marks the beginning of summer.
The winter solstice usually falls on December 21st or 22nd, depending on the year. It is an important cultural and astronomical event that has been celebrated by many cultures throughout history. In some cultures, the winter solstice is seen as a time of renewal, and is marked with ceremonies and rituals.
The winter solstice is also known as the “longest night,” as it is the day with the fewest hours of daylight. After the winter solstice, the days gradually become longer as the Earth’s orbit brings the Northern Hemisphere closer to the sun once again.