How the discoveries of observatories have unlocked the secrets of the Universe, from Stonehenge to Hubble.

An unparalleled history of astronomy presented in the words of the scientists who made the discoveries. Here are the writings of Copernicus, Galileo, Kepler, Ne

The riveting and mesmerizing story behind a watershed period in human history, the discovery of the startling size and true nature of our universe. On New Years

What is the universe? -- How is it formed? -- The sun and rocky planets -- The gas giants -- The Earth and the moon -- Life on Earth -- The conquest of space --