The Nature of Things

Invisible Astronomy (21x9)

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Host David Suzuki visits the Algonquin Park Observatory and the Arecibo Observatory in Puerto Rico as he reports on the use of radio astronomy and the search for extraterrestrial intelligent life. The work of the National Research Council in studying unusual wave formations, recent developments in the exploration of outer space through radio astronomy, and a visit with scientist Joel Hildebrand of the University of California are featured.