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Welcome to Science Talk, the weekly podcast of Scientific American posted on June 15th, 2010.

I'm Steve Murski. This week on the podcast,

a neutrino, like the neutrinos coming through your body from the sun, can go through, on average, 10,000 light years of lead before interacting once. That's theoretical physicist

Lawrence Krauss, director of the Origins Initiative at Arizona State

University. We'll talk to him about neutrinos, and we'll hear about the reopening of the

Institute and Museum of the History of Science in Florence, Italy, now known as the Museo Galileo.

First up, Lawrence Krause, who is also a columnist for a scientific American, we were both

at the World Science Festival in New York City last week.

His column in the June issue deals with neutrinos, so we talked about that,

and some other physics-y things.

Why do you love neutrrinos so much?

Because of the most interesting particles in nature.

They're everything you'd want.

They're elusive and mysterious.

We don't know much about them.

...