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 ...

Summer has officially begun in California. The start of the new season is marked the summer solstice — an astronomical event that marks the longest day of the year. Past this point, the days will get ...

We've been saying "winter is here" in Michigan for weeks now, but the official start to the season doesn't take place until Saturday morning. The winter solstice in the northern hemisphere falls on ...

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.

The start of summer is here. Although parts of California have already experienced triple-digit temperatures, the new season doesn’t officially arrive until the summer solstice — an astronomical event ...