Are You Made of Light?

October 5th, 2026

According to Einstein, you may in fact, be trapped light.

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Hosted by Matt O’Dowd
Written by Matt O’Dowd
Post Production by Leonardo Scholzer
Directed by Andrew Kornhaber
Associate Producer: Bahar Gholipour
Executive Producer: Andrew Kornhaber
Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: Mike Martin

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Hypernova
Daniel Muzquiz
Alex Kern
Ben Delo
Chuck Zegar
Dean Galvin
Donal Botkin
Gregory Forfa
Jeff White
John R. Slavik
Massimiliano Pala
PAUL C PEDERSEN
Scott Gorlick
Scott Gray
Spencer Jones
Vlad Shipulin
Zachary Haberman
Антон Кочков

Gamma Ray Burst
Jason Bowen
Aaron Pinto
Almog Cohen
Arko Provo Mukherjee
Austin Richards
Ayden Miller
Bert Whetstone
Bradley Jenkins
Bradley Ulis
Brandon Lattin
Cal Harrington
Cal Stephens
Cali Chuck
Chris Liao
Christopher Wade
Collin Dutrow
Craig Falls
Craig Stonaha
Dan Warren
Daniel Donahue
Daniel Jennings
Darrell Stewart
David Giltinan
David Johnston
Diana S Polijar
Donovan King
Doyle Vann
Eric Kiebler
Eric Raschke
Eric Schrenker
Faraz Khan
Frederic Simon
Harsh Khandhadia
Isaac Suttell
James Trimmier
Jeb Campbell
Jeff Harris
Jeremy Soller
Jerry Thomas
jim bartosh
John Anderson
John De Witt
John Funai
John H. Austin, Jr.
John Mieras USN Ret
Joseph Salomone
Junaid Ali
Justin Zheng
Kacper Cieśla
Kent Durham
Koen Wilde
Kurtis Kemple
Kyle Atkinson
Lori Ferris
Marcelo Garcia
Marion Lang
Mark Daniel Cohen
Mark Delagasse
Matt Kaprocki
Matthew Johnson
Michael Barton
Michael Clark
Michael Lev
Michael Purcell
Michael Spallino
Mikk Mihkel Nurges
Nicolas Katsantonis
Nils Anderson
Onemind
Paul Wood
Reuben Brewer
Richard Steenbergen
Robert DeChellis
Ross Kennedy
Ross Story
Russell Moore
SamSword
Sandhya Devi
Sean Owen
Shane Calimlim
Terje Vold
Terrance Cennon
Thomas Dougherty
Tybie Fitzhugh
WILLIAM HAY III
Zac Sweers

Posted in Physics |

22-Year-Old Disrupts 50+ Years of Theoretical Physics

October 2nd, 2026

Posted in Physics, Science |

Are You A Disembodied Brain?

September 30th, 2026

Statistically speaking, you are a disembodied brain. Boltzmann figured this out.

Watch the full episode here:
https://youtu.be/nhy4Z_32kQo?si=4bIemIeWcJI51-m-

Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

What If You Travel To The Edge of The Universe?

September 28th, 2026

What happens if you try to get to the edge of the universe? You might end up right back where you started, just not in the way you expect.

Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

The Universe May Have Just Revealed the True Nature of Empty Space

September 24th, 2026

Displate’s offering up to up to for 33% off at: https://displate.com/l/spacetime when you use the code: SPACETIME

Nothing is complicated. By which I mean, everything is complicated, because in physics even completely empty space is described as being full of quantum fields doing complicated things even when nothing else is there. So if empty space has these exotic properties, what sort of crazy stuff can we make it do? One prediction that’s been around for a while is that under extreme conditions, empty space can be sort of crystalized. And there’s good evidence that we’ve observed this for the first time.

Check out the Space Time Merch Store
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Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

0:00 Can Empty Space Crystallize?
1:50 The Strange Physics of the Quantum Vacuum
4:00 How Crystals Change the Behavior of Light
6:34 Crystallizing Empty Space
9:19 The Most Powerful Magnetic Fields in the Universe
10:45 Did We Finally Observe Vacuum Birefringence?
11:53 How Magnetars Polarize X-Rays
13:02 How the Quantum Vacuum Aligns Light
14:05 Is This Really a Detection?
15:20 Our Best Glimpse of Crystallized Space

Posted in Physics |

So You Want to Understand Quantum Mechanics…

September 10th, 2026

Spend two hours exploring the strange, counterintuitive world of quantum mechanics, where particles can exist in multiple states, reality becomes uncertain, and observation itself seems to matter. We’ll break down some of the biggest ideas in quantum physics—from wave functions and superposition to entanglement, uncertainty, and the nature of measurement. By the end, you may not completely understand quantum mechanics—but you’ll understand why nobody else completely does either.

Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop

Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime

Search the Entire Space Time Library Here: https://search.pbsspacetime.com/

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

JWST May Have Discovered a New Cosmic Object: The Black Hole Star

August 27th, 2026

Gigantic black holes existed in a cosmic eyeblink after the Big Bang. That should be impossible. The James Webb Space Telescope has either made the problem much worse, or solved it by discovering the first Black Hole Star.

Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop

Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime

Search the Entire Space Time Library Here: https://search.pbsspacetime.com/

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

There’s Something Massive Hiding Behind the Galaxy’s Strangest Star

August 13th, 2026

Check Out Eons: The first two episodes are out now – free on the PBS app or the website if you’re outside the US. https://to.pbs.org/EonsST
From Dyson swarm to comet apocalypse—it’s been 10 years since the discovery of Tabby’s star and we finally have a leading contender to explain the strangest known star in the galaxy.

Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop

Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime

Search the Entire Space Time Library Here: https://search.pbsspacetime.com/

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

We Thought All Black Holes Came From Stars. We May Have Been Wrong.

August 4th, 2026

Get Up to 60% off Incogni Annual plans at https://incogni.com/spacetime by using the: Code: SPACETIME

LIGO may have detected a black hole that shouldn’t exist, potentially revealing the first evidence of primordial black holes formed in the earliest moments after the Big Bang. But the bigger story is how a decade of gravitational-wave astronomy has transformed from proving Einstein right into a mature science capable of uncovering entirely new physics.

Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop

Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime

Search the Entire Space Time Library Here: https://search.pbsspacetime.com/

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

The Universe Has Been Expanding Since the Big Bang. Just Not How We Thought.

July 16th, 2026

Check out the Space Time Merch Store
https://www.pbsspacetime.com/shop

Last year, the Dark Energy Spectroscopic Instrument—DESI—made headlines around the world. Its enormous map of the Universe hinted that dark energy—the mysterious something causing the expansion of the Universe to accelerate—might not actually be constant. Last month, another giant cosmology experiment released its final results. The Dark Energy Survey. DES. Its results are intriguing. But did they confirm the DESI measurement? We’ll, let’s see, but there’s also a much more interesting question—Why are completely different scientific studies so much more powerful in combination than any one study on its own? The answer brings us to the heart of what science really is.

Sign up for the mailing list to get episode notifications and hear special announcements!
https://mailchi.mp/1a6eb8f2717d/spacetime

Search the Entire Space Time Library Here: https://search.pbsspacetime.com/

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

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