This year’s Winter Solstice will occur on Dec. 21. Many ancient sites, like Newgrange in Ireland, pictured, were built to be aligned with and track the Winter Solstice. Photo by Bethany O’Hagan The ...

Dozens of mysterious structures across the Northern Hemisphere – some nearly 5,000 years old – align precisely to frame the rising and setting Sun during midwinter's shortest day. What motivated ...

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. The ...

The winter solstice is the shortest day and longest night of the year, marking the start of astronomical winter - and, more importantly for most Brits, when the sun starts to set later each evening.