Add Yahoo as a preferred source to see more of our stories on Google. A new study of the Dresden Codex uncovers how Maya astronomers predicted solar eclipses for centuries using simple math and ...

The Chol Q’ij or Tzolk’in Maya calendar ceremony is held in the highlands of Guatemala every 260 days. Pictured above are calendar keepers preparing the altar for the ceremonial fire. Credit: Isabel ...

For more than 120 years, the Venus Table of the Dresden Codex, an ancient Mayan book containing astronomical data, has been of great interest to scholars around the world. The accuracy of its ...

The Grolier Codex helped ancient Mayans track astronomical phenomena. As the Mayan civilization was in decline, a diligent scribe was working on the oldest book created in the Americas: the Grolier ...

We live in a light-polluted world, where street lamps, electronic ads and even backyard lighting block out all but the brightest celestial objects in the night sky. But travel to an officially ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...