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.

Here’s what you’ll learn when you read this story: Carvings on a 12,000-year-old monument in Turkey appear to mark solar days and years, making it possibly the oldest solar calendar in ancient ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. A truly sustainable future requires solar power, but trying to ...

Stonehenge is an astonishingly complex monument, which attracts attention mostly for its spectacular megalithic circle and "horseshoe," built around 2600 BC. It had long been thought that the famous ...