Learn how cicadas, the world’s loudest insects, create their cacophony, and why people in ancient Greece and ancient China admired them.
The allure of novel goods was so strong that it triggered 1,000 years of trade and interactions among people from different places, but there were limits on globalization then that no longer exist,
Everything you ever wanted to know about the big G.
Without the scientific knowledge we have today, ancient cultures turned to myths and legends to understand celestial objects.
More than 2,000 years ago, the Babylonians understood the cycle of eclipses. They also regarded them as signs that could foretell the death of a king.