Welcome to Iowa Public Television! If you are seeing this message, you are using a browser that does not support web standards. This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device. Read more on our technical tips page.

Iowa Public Television

  • Alan Alda in Scientific American Frontiers

Scientific American Frontiers | The Dark Side of the Universe | PBS

Duration: 55:15 (Full Program)
Program: Alan Alda in Scientific American Frontiers #1405

Alan Alda joins some of the world's leading astronomers as they wrestle with the implications of their latest discoveries: that everything we can see, from the world around us to the most distant galaxies, is only a tiny fraction of the entire cosmos.



Post Date: March 2, 2011