This TED Talk features astrophysicist, educator, and musician Matt Russo, recorded live at TEDx U of T2018.

I'd like you all to close your eyes, please.

And imagine yourself sitting in the middle of a large open field with the sun setting on your right.

And as the sun sets, imagine that tonight,

you don't just see the stars appear,

but you're able to hear the stars appear,

with the brightest stars being the loudest notes,

and the hotter, bluer stars producing the higher-pitched notes.

Music producing the higher pitched notes. And since each constellation is made up of different types of stars, the leach produced their own unique melody,

such as Aries, the Ram, or Orion, the hunter, or even Taurus, the bull.

We live in a musical universe, and we can use that to experience it from a new perspective

and to share that perspective with a rider range of people.

Let me show you what I mean.

Now, when I tell people I'm an astrophysicist,

they're usually pretty impressed.

And then I say, I'm also a musician.

They're like, yeah, we know.

So everyone seems to know that there's this deep connection between music and astronomy.

And it's actually a very old idea. It goes back over 2,000 years to Pythagoras.

You might remember Pythagoras from such theorems as the Pythagorean theorem.

And he said, there's geometry in the humming of the strings.

There's music in the spacing of the spheres. And so he literally thought that the motions of the

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