After a day off recovering from jet lag, which I somehow end up spending whizzing up and down the hills of San Francisco on a Segway, I head off down Highway 101 to Mountain View to record the first interview in my Little Atoms road trip. I'm meeting Seth Shostak, senior astronomer at the Seti Institute and presenter of their excellent Big Picture Science radio show and podcast.

Seth is the public face of Seti, he's the SETI GUY. At least that's what it says on his car registration plate. Seti is an abbreviation of Search for Extra-terrestrial Intelligence, and that's what Seth does. He's a full-time alien hunter.

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