Now, we're not sure about all of you, but for us here on the show, some days we just

want to explore.

The unknown still exists all around us, and we have the super sweet day job of talking

to folks who plumb the depths of those mysterious places.

Today I'm joined by two explorers, and they literally seek out the deepest unknowns

there are on this earth.

Karen Lloyd is a microbiologist at the University of Tennessee, though she's soon to be at the

University of Southern California, and Peter Berry is a geochemist and volcanologist

at the Woods Hole Oceanographic Institution.

Hi, Karen, hi, Peter.

Hey.

Hey, Jeff.

Thank you for joining us today, so maybe let's start off with this.

Tell us about unknown places that you love the most, and you seek out, Peter, why don't

you go first?

Sure, yeah.

So I am a volcanologist in geochemist, and I love to work in volcanic systems and hot

springs all around the world.

And what we try to do is visit different places where there's natural volcanic emissions,

so there's gas, there's fluid coming to the surface.

And what I do is I can collect those gases and those fluids, and I can bring them back

to my laboratory here in Massachusetts, and we can measure the chemistry of those systems.

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