One of the most consistent questions we get at the show is from parents who want to know which episodes are kid-friendly and which aren’t. So today, we're releasing a separate feed, Radiolab for Kids. To kick it off, we're rerunning an all-time favorite episode: Space.

In the 60’s, space exploration was an American obsession. This hour, we chart the path from romance to increasing cynicism.

We begin with Ann Druyan, widow of Carl Sagan, with a story about the Voyager expedition, true love, and a golden record that travels through space. And astrophysicist Neil de Grasse Tyson explains the Coepernican Principle, and just how insignificant we are.

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