Nova1974 | TV Show

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PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a (more…)

Premiered: March 3, 1974

Rating: None

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Season 20, Episode 5 Rafting Through the Grand Canyon

First Aired: October 27, 1992

Geologists consider how the Grand Canyon was formed. Included: excerpts from pioneer John Wesley Powell's journal (read by Gregory Peck).

Previous Episode

The Search for the First Americans

Season 20, Episode 4

October 20, 1992

Next Episode

This Old Pyramid

Season 20, Episode 6

November 4, 1992

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