Hey there, Tumble listeners. It's summertime now, and we are off for the summer.

But don't worry, we're going to be posting here on our regular schedule, and while we're busy preparing more great science stories for the fall, we'll be asking you, yes, you, to help us select some of your favorite episodes of Tumble.

If you want to help us decide, just go to the link in the episode description or visit patreon.com slash tumble podcast.

That'll take you to a poll to help choose the next episode.

And if you comment on the poll, we might reach out to you to tell us why you like that episode so much.

This week we're sharing the cave of the underground astronauts, which is one of my personal favorite episodes.

And here's Kai, explaining why he loves it so much.

Hello, my name is Kai.

I'm seven years old.

I want the encore episode to be the cave of the underground astronauts because I like history

and thinking about what happened before I was born.

Thank you, Kai.

Everyone enjoy your summer, and here is the cave of the underground astronauts.

Hi, I'm Lindsay.

And I'm Marshall.

Welcome to Tumble, the show where we explore stories of science discovery.

Today we're climbing deep into a cave to meet three underground astronauts.

Underground astronauts, like they're in hiding or something?

No.

They're archaeologists on an expedition to find fossils from one of our ancient relatives, but like astronauts in space, they have some pretty special talents and a love of adventure.

Tumble is brought to with support from Wise Ant. Back when I was a teacher, one thing I heard over and over again from parents was that homework time was really an enormous source of stress for families.

And that's where something like Wisenk can help.

...