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Home » Why Your God Is Too Small for This Universe w/ Neil deGrasse Tyson (Transcript)

Why Your God Is Too Small for This Universe w/ Neil deGrasse Tyson (Transcript)

Editor’s Notes: In this episode of Mayim Bialik’s Breakdown, world-renowned astrophysicist Neil deGrasse Tyson joins Mayim and Jonathan to explore the deepest mysteries of the cosmos. The wide-ranging conversation tackles mind-bending topics like simulation theory, the existence of aliens, and the intersection of science and spirituality. Tyson also reflects on his iconic cameos in The Big Bang Theory and shares his “big five” questions that remain unanswered by modern science. Throughout the episode, he challenges viewers to embrace the excitement of the unknown and reconsider our humble place in an ever-expanding universe. (Feb 3, 2026)

TRANSCRIPT:

Welcome to the Breakdown

MAYIM BIALIK: Hi, I’m Mayim Bialik.

JONATHAN COHEN: And I’m Jonathan Cohen.

MAYIM BIALIK: And welcome to our breakdown. This is an earth shattering episode.

JONATHAN COHEN: It’s also very, very funny.

MAYIM BIALIK: It’s a universe expanding episode.

JONATHAN COHEN: We cannot wait to tell you who we’re having on today.

MAYIM BIALIK: Usually in our intros we do like a, what happened before the big bang? What happens when you die? Are we living in a simulation? Are there aliens? Can we time travel? Guess what, we’ve got the man who’s going to answer all these things. Jonathan, who’s our guest today?

JONATHAN COHEN: Today we are speaking to Neil deGrasse Tyson.

MAYIM BIALIK: He is an astrophysicist, as you know, and the director of the Hayden Planetarium at the American Museum of Natural History since 1996. He’s the author of 19 books. He’s an incredibly, incredibly talented and gifted science communicator. Also was on two episodes of Big Bang Theory which we’re going to talk about before we get into, can we time travel? Are there aliens? Are aliens watching us? Are we living in a simulation? What happens after we die? How does he explain near death experiences? Is there a God?

We cover everything possible with Neil deGrasse Tyson. In this episode we do want to mention just visiting this planet. Further scientific adventures of Merlin from Omniscient, I think that’s how you pronounce, was first published in 1998, but there is a new edition that just came out in 2025. It’s released. Really, really awesome. It’s the, Dr. Tyson’s character Merlin is answering more questions.

Also, Cosmos Confidential, Neil and Bill’s excellent bromance, is an incredible audio project with William Shatner that is out now, so check that out as well. And Merlin’s tour of the universe, revised and updated for the 21st century, came out in 2024. So check that out. His books are incredible, wonderful gifts. Also, this is the kind of book I want to give to my kids. Like, these are all the questions. Tackle them.

JONATHAN COHEN: So we are very excited to have Neil here in person.

MAYIM BIALIK: Without further ado, Dr. Neil deGrasse Tyson. Welcome to the Breakdown. Break it down.

Neil deGrasse Tyson Joins the Show

NEIL DEGRASSE TYSON: Well, thanks. Thanks for having me. This is my first time on the show, I think.

JONATHAN COHEN: So we’ve been trying.

NEIL DEGRASSE TYSON: Oh, my God.

MAYIM BIALIK: We have wanted to speak to you for a very long time.

NEIL DEGRASSE TYSON: Because I’ve been around, you know. Because you never call, you didn’t write, you know. Because you’ve been on my podcast.

MAYIM BIALIK: Okay, so this is, yes. So that was maybe 10 years ago, which is a distant memory, and I…

NEIL DEGRASSE TYSON: Was deeply honored and I wanted to do right by it.

MAYIM BIALIK: Tell us about your Big Bang Theory crossover. Was I there?

The Big Bang Theory Cameos

NEIL DEGRASSE TYSON: Not the first time, but the second time. But you were not in any of the scenes that I was involved in.

MAYIM BIALIK: My memory is used for Blossom scripts, Big Bang Theory scripts, and music songs that you haven’t heard in 40 years. I remember the lyrics, but I literally, I spent a night with my grandmother in a hotel in Florida and I don’t remember that. And I don’t remember if we crossed paths on Big Bang Theory, but there you go.

NEIL DEGRASSE TYSON: It can happen where you don’t remember. Don’t be upset by that. It’s called age. So my first cameo was, I think it was season three, perhaps.

MAYIM BIALIK: I came in at the end of season three.

NEIL DEGRASSE TYSON: Yeah, yeah, this was. And I had a run in with Sheldon on whether Pluto should be a planet because I was just pilloried by, you know, eight year old third graders who had just memorized the Educated Mother. That’s nine pizzas, right. And so I have these, I have hate mail from elementary school children, like, scrawled in crayons. You know, that’s the worst kind of hate. It’s the worst kind of hate because you’re so, it’s, it breaks your heart.

And you know, the dear docurtation, now I don’t have a favorite planet because you took away my, here’s a picture of it. Put it back into the…

JONATHAN COHEN: I have no hopes and dreams anymore.

# The Pluto Controversy

NEIL DEGRASSE TYSON: So while I was implicated in the demotion of Pluto, I was really just an accessory. I mean, the data came. The data came in. And in New York City, we were the most visible exponent of the demotion of Pluto because we were opening a brand new exhibit and we just took Pluto, plucked it from the ranks of planets.

MAYIM BIALIK: So rude.

NEIL DEGRASSE TYSON: It had it coming. We plucked it from the ranks of planets and grouped it with the other dirty ice balls in the outer solar system.

MAYIM BIALIK: So rude.

NEIL DEGRASSE TYSON: Where it belongs.

JONATHAN COHEN: Dirty ice balls.

MAYIM BIALIK: It’s the language that you use.

NEIL DEGRASSE TYSON: It’s insulting, it’s accurate, it’s insulting for…

MAYIM BIALIK: A man of your academic stature to refer to Pluto as such.

Learning to Perform on Camera

NEIL DEGRASSE TYSON: So I just want to make it clear I’m not an actor.