More than 100 visitors gathered to witness how ancestral Pueblo people tracked seasons through sunlight alignments at this ...

Aztec Ruins National Monument is hosting a Winter Solstice Observation at 4:30 p.m. Monday, Dec. 22. Visitors must arrive to the visitor center by 4:30 p.m. and will be led by rangers and volunteers ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Winter in the Northern Hemisphere and summer in the Southern ...

People across the UK marked the shortest day of the year on Sunday (21 December), which heralds the start of winter but also the turning point when days will start to get longer again. The winter ...

On Sunday, Dec. 21, at exactly 10:03 a.m. EST, the Northern Hemisphere's astronomical winter officially begins with the winter solstice. That's the moment when the Northern Hemisphere is tilted ...

Yes, the darkest day of the year is here, but that means brighter days are ahead. Sunday is the shortest day of the year north of the equator, where the solstice marks the start of astronomical winter ...