Seasons & Episodes
Where is the rest of the universe?
Astronomers believe the universe contains at least ten times as much mass as can be seen and accounted for. How are they
Searching for black holes
At the center of galaxy NGC 1275, some 200 million light years from Earth, there might be a supermassive black hole. In
A Window to Creation
American and Japanese astronomers are followed as they seek to measure cosmic background radiation, the heat remaining f
Waves of the Future
Gravity waves, as yet undetected but predicted by Albert Einstein, may contain the answers to many questions about the u
Stardust
The deaths of stars allow human lives to come into being. This episode explains how and looks at the complete life cycle
Prospecting for Planets
Efforts to discover other planetary systems and to learn more about the planets of our own solar system are examined. Im