Welcome to Star Talk.

Your place in the universe where science and pop culture collide.

Star Talk begins right now.

Welcome to Star Talk Radio, a Neil deGrasse Tyson, your host and your personal astrophysicist.

I'm also the director of New York City's Hayden Planetarium at the American Museum of

Natural History.

What you're about to hear is the final episode of season seven.

Yes, there have been seven seasons of Star Talk.

It's part two of our special time capsule show and we do this every season.

What we do is we send out a survey to all our fans and we ask you to vote for your favorite

episodes, co-host, guests.

From those data, we choose what episodes to splice and glue and staple together and we

end up with a kind of popery of Star Talk's best moments.

I think of it as a comedic scientific melange.

On this part two of the time capsule, we focus only on our cosmic query episodes.

Cosmic queries are what I like to think of as Star Talk after hours.

It's a chance for me and my comedic co-host to field and explore, have fun with, but especially

just to grapple with the questions posed to us by our very own listeners.

And every now and then we bring in a science guest to help us out.

Such was the case with your number one favorite episode according to your votes, The Multiverse.

Here co-host Chuck Nice and I brought in theoretical physicist Paul Steinhardt of Princeton University

to help us untangle some of your questions about multiverse theory.

...