Welcome to StarTalk, your place in the universe where science and pop culture collide.

StarTalk begins right now.

This is StarTalk, I'm Neil deGrasse Tyson, your personal astrophysicist, and this week

we're doing a live show about dead people, it's Halloween time, and there's no other

subject we could tackle for this week's episode, then ghost hunting.

I have with me Eugene Merman, Eugene.

Hello.

Welcome back.

Yes.

I love having you.

I love being here.

Eugene tweets at Eugene Merman, that's what you do, and that's where I find you, and

I don't know the why I see you.

So Eugene, you're a big ghost guy or what?

Yeah, a huge ghost guy.

First of all, thanks for asking such an easily answered question.

It's just a conversation starter, don't overthink it.

Uh, no, I don't, I don't, uh, I'm not a, no, I guess the answer is, I don't know that

I think there are ghosts, but I do think that there's lots, uh, wizards, so, you know,

I'm not all bad.

That makes up for, so this is, of course, has been around forever, people have, you know,

it's a pre-scientific notion before science, there were ghosts, the thoughts of the notion,

...