Hi, I'm Cody Gough.

And I'm Ashley Hamer.

We've got three stories from Curiosity.com

to help you get smarter in just a few minutes.

Today we'll talk about when scientists say we'll meet aliens.

You'll hear what singing sand dunes sound like,

and we'll give you a reason to see roommates in a new light.

Let's satisfy some curiosity.

Cody, when do you think will eventually meet aliens?

Well, we interviewed Michio Kaku, theoretical physicist on the Curiosity podcast last month

and he predicted we would make contact in this century so I'm going to go with him.

Well these researchers that I'm about to tell you about would disagree with him.

We've explored this topic before on curiosity.com and let's back up and explain it a little bit more.

So there's a thing called the Fermi paradox, which basically says that with all of the galaxies in all of the universe,

there is an overwhelming probability

that other life exists.

Yet we haven't found it.

They haven't contacted us.

So that's a paradox. Why is that a thing?

The Fermi paradox is based on something called the Drake equation which

estimates the number of intelligent civilizations that they could possibly be in

our galaxy.

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