PBS
PBS Space Time
Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth with our astrophysicist host: Matthew O’Dowd. For all business inquiries and sponsorship opportunities please reach out to: pbsspacetime@lighthouseagents.comMatt O'Dowd spends his time studying the universe, especially really far-away things like quasars, super-massive black holes, and evolving galaxies. He uses telescopes in space to do it. Matt completed his Ph. D. at NASA's Space Telescope Science Institute, followed by work at th...
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Episodes
Was the Milky Way a Quasar? 28.09.2026 21:43
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Check out Antarctic Extremes on PBS Terra: https://www.youtube.com/pbsterra Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Sign up for the mailing list to get episode notifications and hear special announcements! htt...
The Black Hole Entropy Enigma 28.09.2026 16:09
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Thanks to CuriosityStream for supporting PBS Digital Studios. You can learn more at https://www.curiositystream.com/spacetime and use the code "spacetime" during the sign-up process. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Spa...
Quantum Physics in a Mirror Universe 28.09.2026 22:55
To learn to think like a scientist check out http://Brilliant.org/SpaceTime PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Check out the new Space Time Merch Store! https://pbsspacetime.com/ When you look in mirror, and see what you think is a perfect reflection. You might be looking at universe whose laws are fundamentally differe...
Are Virtual Particles A New Layer of Reality? 28.09.2026 22:58
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Let me tell you a story about virtual particles. It may or may not be true. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Em...
Could the Universe End by Tearing Apart Every Atom? 28.09.2026 20:33
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Of all the unlikely ends of the universe, the Big Rip has to be the most spectacular. Galaxies ripped to shreds, dogs and cat first living together, then tragically separated by the infinitely accelerating expansion of space on subatomic scales. Good thing it's not...
The Cosmic Dark Ages 28.09.2026 20:05
To Learn more about ExpressVPN, visit: https://www.expressvpn.com/spacetime PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE We live in the stelliferous era. Somewhere between 10 and 1000 billion trillion stars fill the observable universe with light. But there was a time before the first star ignited. A time we call the cosmic dark...
Why Quantum Computing Requires Quantum Cryptography 28.09.2026 22:59
Learn more about Audible at: https://www.audible.com/spacetime or text spacetime to 500 500! PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Quantum computing is cool, but you know what would be extra awesome - a quantum internet. In fact if we want the first we’ll need the latter. And the first step to the quantum internet is quant...
How Gaia Changed Astronomy Forever 28.09.2026 14:30
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE The great advances in any science tend to come in sudden leaps. April 25th of 2018 marks the beginning of just such a leap for much of astronomy. In the early hours of the morning, the Gaia mission’s second data release dropped. Our understanding of our own galaxy will never b...
Could We Terraform Mars? 28.09.2026 25:22
To discover more go to http://lego.build/CITYSpace PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Humanity’s future is glorious. As we master space travel, we’ll hop from one lifeless world to the next. Life will blossom in our path and the galaxy with shimmer with beautiful Earth-like orbs. Hmmm… maybe. This won’t sound so far fet...
Is Dark Energy Getting Stronger? 28.09.2026 24:06
Learn More about The Great Courses Plus: http://ow.ly/wvWC30o0QYV PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime The power of Dark Energy may be increasing as the universe ages. Subtle clues are eme...
Does Life Need a Multiverse to Exist? 28.09.2026 23:08
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Life exists in our universe. There we go - one hopefully uncontroversial statement. Therefore our universe...
Deciphering The Vast Scale of the Universe | STELLAR 28.09.2026 13:56
Thank you to Draper and its Hack the Moon initiative for supporting PBS Digital Studios | Learn more at https://wehackthemoon.com. PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE One of the fundamental questions humanity has always asked is how big is our Universe? For much of human history, people believed that Planet Earth was the...
Will We Ever Find Alien Life? 28.09.2026 23:21
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE You can learn more about CuriosityStream at https://curiositystream.com/spacetime The silence of the galaxy and the resulting Fermi Paradox has perplexed us for nearly 50 years. But our most recent surveys of the Milky Way finally allow us to draw scientific conclusions about...
The Alchemy of Neutron Star Collisions 28.09.2026 20:25
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Carl Sagan’s famous words: “We are star stuff” refers to a mind-blowing idea – that most atomic nuclei in our bodies were created in the nuclear furnace and the explosive deaths of stars that lived in the ancient universe. In recent years it’s become clear that the...
The Misunderstood Nature of Entropy 28.09.2026 16:04
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Entropy and the second law of thermodynamics has been credited with defining the arrow of time. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook...
How Much Information is in the Universe? 28.09.2026 20:56
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE There’s quite a bit of stuff in the universe, to put it mildly. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbss...
How We Know The Earth Is Ancient 27.09.2026 23:09
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Check out the Space Time Merch Store...
How Black Holes Kill Galaxies 27.09.2026 19:17
To learn to think like a scientist check out http://Brilliant.org/SpaceTime PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Black holes are really only dangerous if you get too close. Ha, who am I ki...
Building Black Holes in a Lab 27.09.2026 18:11
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi....
Noether's Theorem and The Symmetries of Reality 27.09.2026 17:46
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE To learn more about Brilliant, you can go to https://brilliant.org/spacetime/ Conservation laws are among the most important tools in physics. They feel as fundamental as you can get. And yet they’re wrong - or at least they’re only right sometimes. These laws are consequences...
Electroweak Theory and the Origin of the Fundamental Forces 27.09.2026 20:28
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Our universe seems pretty complicated. We have a weird zoo of elementary particles, which interact through very different fundamental forces. But some extremely subtle clues in nature have led us to believe that the forces of nature were once unified, ruled by a sin...
Is Pluto a Planet? 27.09.2026 24:01
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime You know what a planet is, right? A b...
What is a Theory of Everything: Livestream 27.09.2026 1:41:29
Join two epic livestreams about Theories of Everything! Sign up for prizes, a download link to the videos, and more at http://www.pbsspacetime.com/events. Please subscribe to Brian Keating's YouTube Channel to watch one-on-one interviews with the guest speakers and more: https://www.youtube.com/DrBrianKeating July 28 @ 4pm Eastern (8pm UTC) - What is a Theory of Everything? Moderated by Matt O'Dow...
Our Antimatter, Mirrored, Time-Reversed Universe 27.09.2026 24:11
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime The foundations of quantum theory rests on its symmetries. For example, it should be impossible to distinguish our universe from on...
Reversing Entropy with Maxwell's Demon 27.09.2026 18:45
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Can a demon defeat the 2nd Law of Thermodynamics? You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at]...
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