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Season 5, episode 20. This player now records resume state for the active profile so browse, account, and detail pages can bring you back here quickly.

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S5 E20

A Whisper from Space

In 1965, Arno Penzias and Robert Wilson, two radio astronomers at Bell Telephone Laboratories, discovered faint, but ever-present, microwave signals from space—the most ancient and most distant signals detected by man: the oldest "fossils" in the universe. NOVA explores the current surge of cosmological discovery that continues to aid scientists in the "cosmic archaeology" of digging into the history of the universe.

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Season 5

Back to series detail

Episode 1: In The Event of Catastrophe

Episode 2: The Green Machine

Episode 3: Blueprints in the Bloodstream

Episode 4: One Small Step

Episode 5: The Final Frontier

Episode 6: BaMiki BaNdula: Children of the Forest

Episode 7: Trial of Denton Cooley

Episode 8: The Great Wine Revolution

Episode 9: The Case of the Ancient Astronauts