Dr. Sagan's cosmic calendar makes the history of the universe understandable and frames the origin o...

This episode is a historical re-creation of the life of Johannes Kepler, the last scientific astrolo...

A descent through the hellish atmosphere of Venus to explore its broiling surface serves as a warnin...

Is there life on Mars? Dr. Sagan takes viewers on a tour of the red planet first through the eyes of...

Dr. Sagan compares the exhilaration of 17th-century Dutch explorers who ventured in sailing ships ha...

Humans once thought the stars were campfires in the sky and the Milky Way "the backbone of night." ...

A voyage to see how star patterns change over millions of years is followed by a journey to the plan...

Using computer animation and amazing astronomical art, Dr. Sagan shows how stars are born, live, die...

Dr. Sagan leads us on some awesome trips — to a time when galaxies were beginning to form, to India ...

The brain is the focus of this fascinating portion of our journey as Dr. Sagan examines another of t...

Are there alien intelligences? How could we communicate with them? What about UFOs? The answers to t...

Through the use of special effects we retrace the 15-billion-year journey from the big bang to the p...