Perhaps the most mysterious structure on Earth, Stonehenge has stood on a plain in Southern England for 5000 years. Why is it there? In this episode we explore the possibility that this was a prehistoric astronomical observatory.

The Great Pyramids of Giza remain one of the enduring wonders of the ancient world. These mesmerizing monuments have eluded astronomers and archeologists for centuries.

Sodom and Gomorrah--a terrifying Biblical tale of two cities incinerated by a hail of fire and brimstone. Was this a fantastic fable, or an actual apocalyptic disaster? Astronomers, archeologists and biblical scholars investigate.

What was the astronomical reality behind the star that, according to the Gospel of Matthew, guided the Magi to the young Jesus? This episode examines almost 20 centuries of theories, including meteors, novae, supernovae and comets.

To our ancestors, the appearance of certain astronomical events meant something big and something bad was coming. But what were they really seeing?

Could the strange shapes of the universe solve the mysteries that have haunted mankind since ancient times? Is the eye of God peering at us from the heavens? What is the strange hexagon at the pole of Saturn, or the face on the Moon?

Hell fires, endless winters, or a planet wracked by earthquakes are a few versions of Armageddon visualized by the Vikings, Aztecs, and the rest of our ancient ancestors. But which does modern science think will be closest to the truth?

The ancients believed that the universe consisted of countless worlds we could not see, and argued endlessly over the nature of these distant, invisible planets and whether they might be inhabited.

Many believe that the celestial movement of the Sun, planets and moon gives us the blueprint for life, and governs our future. But is there proof that this system of tracking astronomical phenomena can actually predict our future?

Do Rome's ancient monuments have secret connections to the Sun? The answers are hidden in ancient ruins...and among the stars.