When did Cosmic Journeys Season 1 Episode 5 air?
Cosmic Journeys Season 1 Episode 5 aired on September 27, 2009.


Cutting-edge stories about the origins of the universe, black holes, exploding stars, the search for ET life, and the nature of the planets. How did the universe begin? Where will it end? Are there other worlds like Earth?

Our Milky Way Galaxy is thought to harbor millions of black holes, the ultra dense remnants of dead stars. But now, in the universe far beyond our galaxy, there's evidence of something far more ominous. A breed of black holes that has reached incomprehensible size and destructive power. Just how large, and violent, and strange can they get?
Direct answers for episode-level questions and details.
Cosmic Journeys Season 1 Episode 5 aired on September 27, 2009.
This episode runs for approximately 24 minutes.
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