Winter Solstice brings shortest day & longest night! Learn why, the science behind it, & its cultural significance. Click to discover the turning point!

December 21 marks the Winter Solstice 2025, when the Northern Hemisphere experiences the shortest day and longest night. Here ...

Looking for a sky event this week? Check out our full Sky This Week column. December 20: Io and its shadow transit Jupiter ...

Dec. 21 marks the darkest day of the year in the Northern Hemisphere and the start of astronomical winter, known as the ...

The final month of 2025 will bring a mix of celestial light shows and long winter nights, including one of the most highly anticipated meteor showers of the year. Here are the top events to mark on ...

Winter Solstice 2025 falls on December 21, marking the shortest day and longest night in the Northern Hemisphere. Learn why ...