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Welcome to Stuff to Blow Your Mind, a production of IHeart Radio.

Hey, welcome to Stuff to Blow Your Mind.

My name is Robert Lamb.

And I am Joe McCormick. In today's episode of Stuff to Blow Your Mind. My name is Robert Lamb. And I am Joe McCormick.

In today's episode of Stuff to Blow Your Mind, we're returning once more to the subterranean

world. This is, of course, a recurring theme on our show. We often venture into topics

concerning the deep ocean. We often venture into topics concerning the world beneath the surface,

and that's where we're going here once more. The theme is we like to hide from sunlight.

I mean, it's, you know, it factors into the movies that we watch for Weird House cinema. There's so much

amazing science from geological to the biological.

And so, yeah, we're always going to keep coming back to the underground.

In particular, for this episode, we're going to be talking about Karchner Caverns in Arizona.

We'll be talking about this particular cave and what makes it special, but we'll also be covering some related content that extends well beyond this particular cave system, and even beyond our planet, perhaps.

So, yeah, if you're outside of Arizona or you've never been to Carchner Caverns, does not matter.

These topics are going to be, to a certain extent, universal.

So we're talking about this cave system because you just recently visited there, I think not for the first time, right?

Right. I had to look up my old ticket stubs, but I first visited Karchner Cavern some, I think, 14 years ago.

And last month, finally revisited it with my family. So like our kiddo had

never been. And I really wanted them to see it. Karchner Caverns is an Arizona State Park. So if you

find yourself in Tucson or near Tucson or if you're up for a two plus hour drive from Phoenix,

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