Bloggingheads: Bad astronomy, good conversation [Saturday Science]

In this week's Science Saturday, blogger and astronomer Phil Plait chats with science journalist Carl Zimmer. They talk about the time Buzz Aldrin punched a moon-landing denialist in the face, how consumer-culture gadgetry can serve the cause of science, the death of newspapers in the Internet age, and the big questions in astronomy that Phil hopes we'll have answers for soon.

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