The outer solar system and life - Carl Sagan's 1977 Christmas Lectures 2/6

In his second Christmas lecture, Carl Sagan travels beyond Earth to explore the possibility of life in outer space. This lecture was filmed at the Ri on Friday 02 Dec 1977. From ancient organisms to the plants and animals we see today, our planet showcases a spectacular array of life. But beneath such diversity lies an underlying unity.

Courtesy of The Royal Institution on YouTube. Watch on YouTube ↗

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