Archaeologists in the Netherlands just uncovered a religious sanctuary that dates back 4,000 years. The site, which stretched ...

But according to researchers, the markings could be evidence of two big findings: The ancient pillar could be the world’s oldest lunisolar calendar, and it may serve as a memorial to a comet ...

making it possibly the oldest solar calendar in ancient civilization. Marking a massive comet strike as the start, inhabitants used symbols to record every astronomical event, including those as ...

How to use this calendar. The New York Times has offered ... s birth and become a catalog of asteroids and comets in our solar system that could one day be hazardous to Earth.

Markings on a stone pillar at a 12,000 year-old archaeological site in Turkey likely represent the world's oldest solar calendar, created as a memorial to a devastating comet strike, experts suggest.

The carvings recently deciphered at the Göbekli Tepe archaeological site in Turkey suggest the monument could also represent the world's oldest solar calendar, according to new research.

While the Gregorian calendar (introduced through Christianity) has mostly been skewed in the western world to take centre stage, the lunar and solar calendars are acknowledged in some celebrations ...

But what type of astronomical calendar—lunar or solar—has remained unclear. Visitors look at a fragment of the 2,100-year-old Antikythera Mechanism, believed to be the earliest surviving ...