Mt. Wilson and the Copernican Principle
In this sequence from The Privileged Planet the implications of one of the greatest discoveries in the history of astronomy are considered in the light of the Earth’s significance in the universe.
The Galactic Habitable Zone
Location is everything…especially for life within the Milky Way galaxy. Astronomers Guillermo Gonzalez and Donald Brownlee explain the concept of the Galactic Habitable Zone.