Scotland lunar-calendar find sparks Stone Age rethink

Archeologists have discovered a lunar calendar in Aberdeenshire, Scotland, that is nearly ten thousand years old. Their findings show that the calendar makers (1) thought about time and (2) figured out a means to follow it ...

An ancient Mayan Copernicus

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 observations, especially the ...

page 1 from 4