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Astronomycast, episode 393, the standard model, leptons and quarks.

Welcome to Astronomycast, term weekly facts based on journey through the cosmos, who help you understand not only what we know, but how we know what we know.

My name is Fraser Kane, I'm the publisher of university and with me is Dr. Pamela Gay, a professor at Southern Illinois University Edwardsville, and the director of Cosmicquest.

Hey Pamela, how you doing?

I'm doing well, I'm coming to you from my office on campus this week.

So folks are noticing a slightly different audio quality.

I'm so sorry, I'm using a professional mic, but this particular one is about a decade old.

It was one of the first ones that we got, it actually is the first one that we got when we started recording.

Wow, vintage astronomy cast microphone.

It's true.

Well, it's special.

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