The inaugural Thompson Leadership Lecture at IMSA — Sagan on comets and the origin of life, calling the academy 'a gift from the people of Illinois to the human future.'
Summary
The lecture argues that comets may have helped make life possible by delivering organic compounds to early Earth and may also have influenced evolution through a mass extinction event that ended the dinosaurs. Sagan uses this to emphasize the interconnectedness of science and the importance of interdisciplinary learning and scientific responsibility.
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