A founding writer and editor at Rolling Stone magazine, Timothy Ferris profiled rockers like Todd Rundgren and Sly Stone before finding his own groove in the world of science.

Over the past 40 years, Ferris has written best sellers like "Coming of Age in the Milky Way" and "The Whole Shebang" and produced three groundbreaking PBS documentaries, including "The Creation of the Universe." He also was the creative visionary behind the Voyager "golden discs" -- compilations of Earth's music and natural sounds on LP-like records that were installed on the Voyager spacecraft.

In this preview of our forthcoming full interview with Ferris, he talks about the struggle to find just the right words to inspire himself and his readers.

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