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Brian Keating deep dives into the remarkable life and legacy of Carl Sagan—one of history’s greatest science communicators. In this special episode of "The Scientist," Brian explores how a kid from Brooklyn rose to become the voice of science for a generation, making the universe both vast and intimately personal for millions.

This episode blends firsthand accounts, critical biographies, and personal reflections to extract five powerful principles from Sagan’s career—offering insights into how we, too, might inject more wonder, rigor, and responsibility into our own journeys. Whether you’re a scientist, a dreamer, or simply curious about your place in the cosmos, this episode promises an inspiring look at an imperfect but extraordinary man who changed how we see our universe.

00:00 Reflections on Carl Sagan's Legacy

03:13 Young Sagan Challenges Venus Theories

07:10 Carl Sagan: Public Engagement Advocate

10:26 Carl Sagan's Influential Responsibility

14:31 "Overview Effect: A Vision for Humanity"

16:59 Embracing Change and Courage in Science

22:13 "Challenging Sagan: Science vs. Optimism"

25:20 Galileo's Earth Observations Legacy

26:21 Demand Evidence, Keep Wondering

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