Hey everyone, Fraser here.

Once again, this episode of Astronomy Cast is brought to you by your good friends at Casper

mattresses.

Of course, I've now been sleeping on a Casper mattress for almost two years now and I've

still liked it.

In fact, I went into a mattress store just to kind of look around and it's crazy.

They're not as comfortable and they're way more expensive.

So once again, I'm glad I've got two Casper mattresses in the house and I really appreciate

their support in sponsoring the Astronomy Cast.

Of course, you can order Casper mattress, risk-free.

This in it in this really cool box that sort of again defies the laws of physics.

You don't know how they broke space time to get a mattress in there.

Try it for a hundred days.

If you don't like it, return it.

They'll pick it up free in Canada or the United States.

So if you want to get a special $50 off your Casper mattress, go to Casper.com slash Astro

and use the promo code Astro.

Thanks again, Casper.

It's Trimicast Episode 453.

Favorite things we've done over ten years.

Welcome to Astro.

Weakly Facts-based journey through the cosmos where we help you understand not only what

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