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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.com Matt 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 the University of Melbourne and Columbia University. He's now a professor at the City University of New York's Lehman College and an Associate at the American Museum of Natural History's Hayden Planetarium. Previous host Gabe Perez-Giz is an astrophysicist who studies black hole physics. He received his Ph.D. from Columbia University and also hosted PBS Infinite Series.


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  • October 23 · 25 min

    Interstellar Expansion WITHOUT Exceeding the Speed of Light

    Watch Space: The Longest Goodbye on Independent Lens: https://pbs.org/longestgoodbye In the far future we may have advanced propulsion technologies like matter-antimatter engines and compact fusion drives that allow humans to travel to other stars on timescales shorter than their own lives. But what if those technologies never materialize? Are we imprisoned by the vastness of space—doomed to remain in the solar system of our origin? Perhaps not. A possible path to a contemporary cosmic dream may just be to build a ship which can support human life for several generations; a so-called generation ship. 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://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/ Senior Creative Producer (ITVS): Andrea Bloom Creative Director (ITVS): Carol Paik Executive Producers (ITVS): Carrie Lozano, Lois Vossen Vice President, Marketing and Communications (ITVS): Lisa Tawil Original Production Funding Provided By: The Corporation for Public Broadcasting Acton Family Giving John D. and Catherine T. MacArthur Foundation Ford Foundation Wyncote Foundation National Endowment for the Arts Hosted by Matt O'Dowd Written by Christopher Pollack & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producers: Eric Brown & Andrew Kornhaber Executive in Charge for PBS: Maribel Lopez Director of Programming for PBS: Gabrielle Ewing Assistant Director of Programming for PBS: John Campbell 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. © 2024 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 Sponsors First Principles Foundation John Sronce Bryce Fort Peter Barrett David Neumann Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Quasar Sponsors Mark Rosenthal Grace Biaelcki Glenn Sugden Ethan Cohen Stephen Wilcox J Tyacke Mark Heising Hypernova Sponsors Daniel Muzquiz Michael Tidwell Frank Plessers Chris Webb David Giltinan Ivari Tölp Kenneth See Gregory Forfa Alex Kern Bradley Voorhees Scott Gorlick Paul Stehr-Green Ben Delo Scott Gray Антон Кочков Robert Ilardi John R. Slavik Donal Botkin Edmund Fokschaner chuck zegar Gamma Ray Burst Sponsors Jordan Young Arko Provo Mukherjee Mike Purvis Christopher Wade Anthony Crossland Grace Seraph Parliament Stephen Saslow Robert DeChellis Tomaz Lovsin Anthony Leon Leonardo Schulthais Senna Lori Ferris Dennis Van Hoof Koen Wilde Nicolas Katsantonis Joe Pavlovic Justin Lloyd Chuck Lukaszewski Cole B Combs Andrea Galvagni Jerry Thomas Nikhil Sharma John Anderson Bradley Ulis Craig Falls Kane Holbrook Ross Story teng guo Harsh Khandhadia Matt Quinn Michael Lev Rad Antonov Terje Vold James Trimmier Jeremy Soller Paul Wood Joe Moreira Kent Durham jim bartosh Ramon Nogueira The Mad Mechanic John H. Austin, Jr. Diana S Poljar Faraz Khan Almog Cohen Daniel Jennings Russ Creech Jeremy Reed David Johnston Michael Barton Isaac Suttell Oliver Flanagan Bleys Goodson Mark Delagasse Mark Daniel Cohen Shane Calimlim Tybie Fitzhugh Eric Kiebler Craig Stonaha Frederic Simon Tonyface John Robinson Jim Hudson Alex Gan John Funai Adrien Molyneux Bradley Jenkins Amy Hickman Vlad Shipulin Thomas Dougherty King Zeckendorff Dan Warren Joseph Salomone Patrick Sutton Julien Dubois ​ ​ ​ ​ ​ ​ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 16 min

    Building Black Holes in a Lab

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Uploaded 22-06-20 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.mp/1a6eb8f2717d/spacetime Black holes are about the worst subjects for direct study in the universe. But at this stage, it’s all we can do to convince ourselves of their existence. Actually studying the physics of real black holes is much, much harder. I mean, we could try to make one - but that’s way beyond our current tech level, and also potentially humanity-destroying. Well it turns out we don’t need to make real black holes to at least get started with the lab work. We can instead study analog black holes - and by analog, I don’t mean old fashioned clockwork black holes - I mean analogies. Physical systems that aren’t black holes but that behave in similar ways - and may reveal the real behaviours of real black holes. End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0Q Matt Visser Paper https://arxiv.org/abs/gr-qc/9712010 Hosted by Matt O'Dowd Written by Daniel Garisto and Matt O'Dowd Graphics by Leonardo Scholzer, Yago Ballarini, and Pedro Osinski Directed by: Andrew Kornhaber Camera Operator: Bahaar Gholipour Executive Producers: Eric Brown and Andrew Kornhaber #space #astrophysics #blackholes Previous Episodes Referenced: Unruh Radiation https://www.youtube.com/watch?v=7cj6oiFDEXc Hawking Radiation: https://www.youtube.com/watch?v=qPKj0YnKANw&vl=en How Black Hole Spin Space Time https://www.youtube.com/watch?v=UjgGdGzDFiM&t=2s What’s On the Other Side of a Black Hole: https://www.youtube.com/watch?v=T4oYvSH6jJ8 Special Thanks to All our Big Bang Sponsors! Big Bang Supporters Alexander Tamas Caed Aldwych David Nicklas Fabrice Eap Juan Benet Justin Lloyd Morgan Hough Radu Negulescu Quasar Supporters Carson Kahn Christina Oegren Mark Heising Vinnie Falco Hypernova Supporters Chuck Zegar Danton Spivey Donal Botkin Edmund Fokschaner Hank S John Hofmann John Pollock John R. Slavik Jordan Young Joseph Salomone Julian Tyacke Mathew Matthew O'Connor Syed Ansar Timothy McCulloch William Bryan Gamma Ray Burst Supporters A G Adrian Hatch AlecZero Andreas Nautsch Andrew Richmond Bleys Goodson Bradley Jenkins Brandon labonte Brandon Lattin Brian Blanchard Bruce B Cass Costello Craig Stonaha Dan Warren Daniel Lyons Darryl J Lyle David Bethala David Hughes Dawn M Fink Devon Rosenthal DFaulk Eric Kiebler Frederic Simon Geoffrey Short Graydon Goss Greg Smith Isaac Suttell Ismael Montecel jechamt John Funai John Griffith John Robinson Josh Thomas Justin Waters Kevin Lee Kevin Warne Kyle Hofer Luaan M D Malte Ubl Mark Daniel Cohen Michael Conroy Mikhail Klakotskiy Mirik Gogri Nick Virtue Nick Wright Nickolas Andrew Freeman Oliver Flanagan Patrick Sutton Paul Rose Protius Protius Rainwalker Winterpainter Richard Deighton Robert Ilardi Robert Walter Scott Gossett Sean Warniaha Shane Calimlim Simon Oliphant Tatiana Vorovchenko Tim Stephani Tonyface Tybie Fitzhugh Yannick Weyns Yurii Konovaliuk Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 20 min

    Why Quantum Computing Requires Quantum Cryptography

    Learn more about Audible at: https://www.audible.com/spacetime or text spacetime to 500 500! Uploaded 09-05-19 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 quantum cryptography. Check out the new Space Time Merch Store! https://pbsspacetime.com/ Support Space Time on Patreon https://www.patreon.com/pbsspacetime Need a Black Hole Refresher https://youtu.be/vNaEBbFbvcY #cryptography #quantumcomputing #spacetime Hosted by Matt O'Dowd Written by Graeme Gossel and Matt O'Dowd Graphics by Leonardo Wille Directed by Andrew Kornhaber Produced By: Kornhaber Brown Quantum theory may seem like an obscure subject of questionable relevance to the average person. But in fact much of our technological world depends on our understanding of the quantum properties of the subatomic universe. And soon, perhaps very soon, we’ll be interacting with the weirdness of quantum mechanics even more directly – with the coming of quantum computing and the quantum internet. Quantum computing is a topic that’s that has been well covered, so we’re going to be talking about the quantum internet. Specifically quantum cryptography and quantum key distribution – the foundations of the prospective quantum internet. We may come back to quantum computer in detail – but for now let me show you why their advent will demand a quantum internet. Special Thanks to our Patreon Supporters! Big Bang Supporters: Anton Lifshits David Nicklas Fabrice Eap Juan Benet Quasar Supporters: Mark Rosenthal Tambe Barsbay Vinnie Falco Hypernova Supporters: Antoine Brugier Chuck zegar Danton Spivey Donal Botkin Edmund Fokschaner Hank S John Hofmann Jordan Young Joseph Salomone kkm Mark Heising Matthew Matthew O'Connor Gamma Ray Burst Supporters: Adrien Moyneux Alexander Lazerev Alexey Eromenko Andreas Nautsch Antonio Ruiz Bradley Jenkins Brandon Labonte Buruk Aregawi Carlo Mogavero Daniel Lyons David Behtala Dustan Jones Geoffrey Short James Flowers James Quintero John Funai John Pollock Jonah Joseph Dillman Joseph Emison Josh Thomas Kevin Warne Kyle Hofer Malte Ubl Mark Vasile Nathan Hitchings Nick Virtue Paul Rose Ratfeast Ryan Jones Scott Gossett Sigurd Ruud Frivik Tim Stephani Tommy Mogensen Yurii Konovaliuk سلطان الخليفي Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 15 min

    The Misunderstood Nature of Entropy

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 18-07-18 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.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_... Previous Episode: Quantum Invariance and The Origin of The Standard Model https://www.youtube.com/watch?v=V5kgruUjVBs Entropy is surely one of the most intriguing and misunderstood concepts in all of physics. The entropy of the universe must always increase – so says the second law of thermodynamics. It’s a law that seems emergent from deeper laws – it’s statistical in nature – and yet may ultimately be more fundamental and unavoidable than any other law of physics. Hosted by Matt O'Dowd Written Matt O'Dowd Graphics by Grayson Blackmon Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang CoolAsCats David Nicklas Anton Lifshits Joey Redner Fabrice Eap Quasar Tambe Barsbay Mayank M. Mehrota Mars Yentur Mark Rosenthal Dean Fuqua Roman Pinchuk ColeslawPurdie Vinnie Falco Hypernova Donal Botkin Edmund Fokschaner Matthew O’Connor Eugene Lawson Barry Hatfield Martha Hunt Joseph Salomone Chuck Zegar Craig Peterson Jordan Young Ratfeast John Hofmann Thanks to our Patreon Gamma Ray Burst Supporters: James Hughes Fabian Olesen Kris Fernet Jane Meyers James Flowers Greg Allen Denys Ivanov Nick Virtue Alexey Eromenko Nicholas Rose Scott Gossett Mark Vasile Patrick Murray سلطان الخليفي Alex Seto Michal-Peanut Karmi Erik Stein Kevin Warne JJ Bagnell Avi Goldfinger John Pettit Florian Stinglmayr Benoit Pagé-Guitard Nathan Leniz Brandon Labonte David Crane Greg Weiss Shannan Catalano Brandon Cook Malte Ubl Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 22 min

    Is Dark Energy Getting Stronger?

    Learn More about The Great Courses Plus: http://ow.ly/wvWC30o0QYV Uploaded 20-03-19 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 emerging that the accepted model for the nature of dark energy and dark matter may not be all that. We saw the first such clue recently in our recent episode on the Crisis in Cosmology. Today we’re doing a Space Time Journal Club to reveal another clue. We’re looking at a new paper in Nature Astronomy, “Cosmological constraints from the Hubble diagram of quasars at high redshifts” by Risaliti and Lusso. It hints that the cosmological constant may not be so constant after all. In fact it may be increasing. If this is true, then our prediction for the future of our universe looks VERY different, and may involve the entire universe tearing itself to shreds at the subatomic level in the Big Rip. On this edition of Space Time Journal Club we look at: Risaliti and Lusso (2019) "Cosmological Constraints from the Hubble Diagram of Quasars at High Redshifts" https://www.nature.com/articles/s41550-018-0657-z #darkenergy #darkmatter #spacetime More about The Great Courses Plus: The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US, UK, and Australian markets. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally. Learn More About Dark Energy Here: https://www.youtube.com/playlist?list=PLsPUh22kYmNA6WUmOsEEi32zi_RdSUF4i Hosted by Matt O'Dowd Written by Matt O'Dowd Graphics by Aaron Halevy Directing by Andrew Kornhaber Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang: Anton Lifshits coolascats David Nicklas Fabrice Eap Juan Benet Justin Lloyd Tim Davis Quasar: James Flowers Mark Rosenthal Tambe Barsbay Vinnie Falco Hypernova: chuck zegar Danton Spivey Donal Botkin Edmund Fokschaner Jens Theisen John Hofmann Jordan Young Joseph Salomone kkm Mark Heising Matthew O'Connor Thanks to our Patreon Gamma Ray Burst Supporters: Alexey Eromenko Antonio Ruiz Bradley Jenkins Brandon Labonte Buruk Aregawi Carlo Mogavero Daniel Lyons David Behtala David Crane David Schmidt Dustan Jones Geoffrey Short Greg Weiss Jack Frosch James Hughes James Quintero Jinal Doshi JJ Bagnell John Webber Jon Folks Jonah Joseph Emison Josh Thomas Kenneth F Leonard Kevin Warne Kyle Hofer Malte Ubl Mark Vasile Nathan Hitchings Nicholas Rose Nick Virtue Ratfeast Richard Broman Scott Gossett Sigurd Ruud Frivik Tim Crookham Tim Stephani Tommy Mogensen سلطان الخليفي Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 21 min

    How Much Of The Universe Can Humanity Ever Witness?

    Thank you to Brilliant for Supporting PBS. To learn more go to https://brilliant.org/SpaceTime/ PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime There’s an absolute limit to our access to the universe beyond our own galaxy. There’s a limit to what we can ever hope to explore or send signals to, and a very different limit to what we can ever hope to witness. Today we’re going to explore the latter. We’re going to figure out the absolute limit of our future view of the universe, and of the universe’s ability to influence us. Next time we’ll turn it around and ask: how much of the external universe can WE potentially influence, and even explore? 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/ Hosted by Matt O'Dowd Written by Matt O'Dowd & Euan McLean Post Production by Leonardo Scholzer, Yago Ballarini, & Stephanie Faria Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producers: Eric Brown & Andrew Kornhaber Executive in Charge for PBS: Maribel Lopez Director of Programming for PBS: Gabrielle Ewing Assistant Director of Programming for PBS: John Campbell Spacetime is produced by Kornhaber Brown for PBS Digital Studios. This program is produced by Kornhaber Brown, which is solely responsible for its content. © 2023 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 Sponsors Ian Jones Bryce Fort Peter Barrett David Neumann Sean Maddox Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Fabrice Eap Mark Rosenthal Quasar Sponsors Glenn Sugden Alex Kern Ethan Cohen Stephen Wilcox Christina Oegren Mark Heising Hypernova Sponsors Ivari Tölp Vyce Ailour Zachary Wilson Kenneth See Gregory Forfa Kirk Honour Joe Moreira Bradley Voorhees Marc Armstrong Scott Gorlick Paul Stehr-Green Ben Delo Scott Gray John R. Slavik Donal Botkin John Pollock Edmund Fokschaner chuck zegar Jordan Young Daniel Muzquiz Gamma Ray Burst Supporters Lucas Kazakevicius Massimiliano Pala Aaron Molina Thomas Nielson Joe Pavlovic Ryan McGaughy Mark West Chuck Lukaszewski Edward Hodapp Cole Combs Andrea Galvagni Jerry Thomas Nikhil Sharma Ryan Moser Jonathan Cordovano John Anderson David Giltinan Scott Hannum Paul Widden Bradley Ulis Craig Falls Kane Holbrook John Yaraee Ross Story teng guo Mason Dillon Matt Langford Harsh Khandhadia Thomas Tarler Susan Albee Frank Walker Michael Lev Terje Vold James Trimmier Andre Stechert Paul Wood Kent Durham jim bartosh Ramon Nogueira Paul Suchy Ellis Hall John H. Austin, Jr. Diana S Polijar Faraz Khan Almog Cohen Alex Edwards Endre Pech Daniel Jennings Cameron Sampson Russ Creech Jeremy Reed David Johnston Michael Barton Andrew Mann Isaac Suttell Bleys Goodson Robert Walter Yury Kitaev Mirik Gogri Mark Delagasse Mark Daniel Cohen Nickolas Andrew Freeman Shane Calimlim Tybie Fitzhugh Robert Ilardi Eric Kiebler Craig Stonaha Graydon Goss Frederic Simon Tonyface John Robinson Jim Hudson Alex Gan David Barnholdt David Neal John Funai Bradley Jenkins Cody Brumfield Thomas Dougherty Dan Warren Patrick Sutton John Griffith Dean Faulk Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 20 min

    The Supernova At The End of Time

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Uploaded 15-12-20 Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Good news everyone: it looks like the universe is going to end with a series of catastrophic explosions. The very, very long story short is that the universe ends in heat death, as it approaches maximum entropy, and its eternal exponential expansion drives it to effective utter emptiness and absolute cold. But new calculations have revealed we may be able to look forward to one last source of astrophysical cataclysms - a new type of supernova that can only happen at the end of the universe. 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.mp/1a6eb8f2717d/spacetime Hosted by Matt O'Dowd Written by Matt O'Dowd Graphics by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, and Adriano Leal Directed by: Andrew Kornhaber Assistant Producer: Setare Gholipour Executive Producers: Eric Brown and Andrew Kornhaber End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0Q Special Thanks to Our Patreon Supporters Big Bang Ahmad Jodeh Alexander Tamas Brodie Rao Clinton Robinson David Nicklas Fabrice Eap Juan Benet Mark Rosenthal Matthew Miller Morgan Hough Radu Negulescu Scott Gray Sean Maddox Quasar Christina Oegren Hank S Mark Heising Vinnie Falco Hypernova Alec S-L Ben Delo chuck zegar Danton Spivey Donal Botkin Edmund Fokschaner Jason Finn John Hofmann John Pollock John R. Slavik Jordan Young Joseph Salomone Julian Tyacke Justin Jermyn L. Wayne Ausbrooks m0nk Mark Matthew Bosko Mathew Matthew O'Connor Nicholas Newlin Timothy McCulloch william bryan Антон Кочков Gamma Ray Burst A G Adrian Hatch AlecZero Andreas Nautsch Andrew Mann Andrew Richmond Anthony Kahng Astaurus Astronauticist Bill Blair Bleys Goodson Bradley Jenkins Brandon labonte Brandon Lattin Brian Blanchard Bruce B Cameron Sampson Cass Costello Christopher Barron Craig Stonaha Dan Warren Daniel Jennings Daniel Lyons Darren Duncan Darryl J Lyle David Hughes David Johnston Dawn M Fink Derek Davis Devon Rosenthal DFaulk DrJYou Endre Pech Eric Kiebler Eric Webster fieldsa eleanory Frederic Simon Geoffrey Clarion Geoffrey Short Graydon Goss Greg Smith Isaac Suttell Ismael Montecel J. King James Ramsey Jeremiah Johnson Jeremy Reed John Funai John Griffith John Robinson Kevin Lee Kevin O'Connell Kevin Warne Kyle Hofer Lily kawaii Luaan Lucas Morgan Malte Ubl Mark Daniel Cohen Martin J Lollar Martin Skans MD3 Michael Barton Michael Conroy Mirik Gogri Mr T Nate Nick Virtue Nickolas Andrew Freeman Oliver Flanagan Patrick Sutton Peter Mertz Pratik Mukherjee Richard Deighton Robert C Schupp Robert Ilardi Robert Walter Russ Creech Scott Gossett Shane Calimlim Simon Oliphant Steven Sartore Tim Stephani Tonyface Tybie Fitzhugh Yannick Weyns Yurii Konovaliuk Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 16 min

    Extraterrestrial Superstorms

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 16-08-17 Earth has its share of monster storms, but even our most powerful hurricanes are a breeze compared to the great, planet-sized tempests of the gas giants. LegalZoom is not a law firm or a substitute for the advice of an attorney. Get 15% off your next purchase at https://www.legalzoom.com/spacetime. ... You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Previous Episode: The One-Electron Universe https://www.youtube.com/watch?v=9dqtW... The great vortices of the Jovian planets are true storms, analogous in many ways to Earth’s hurricanes. There are, of course, some differences. For example, these storms are as big as entire planets. The largest and oldest storm in the solar system is Jupiter’s Great Red Spot, stretching an incredible two to three times the diameter of the planet Earth. Meanwhile the fastest winds ever measured, clocking fifteen hundred miles per hour, once raged in Neptune’s Great Dark Spot. Saturn’s Polar Vortex is a 20,000-mile-wide monster shaped like a hexagon. Even plain-looking Uranus hides USA-sized hurricanes below its methane haze. There are many unsolved mysteries surrounding these epic storms. We may be close to finding some answers, following the Juno spacecraft’s recent flyby of Jupiter’s Great Red Spot. Juno's interactive website: https://www.missionjuno.swri.edu/ Written by Alexandra Yep and Matt O’Dowd Hosted by Matt O' Dowd Produced by Rusty Ward Graphics by Kurt Ross Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Comments answer by Matt: Andres64 https://www.youtube.com/watch?v=9dqtW... Keith Gaughan https://www.youtube.com/watch?v=9dqtW... Vacuum Diagrams https://www.youtube.com/watch?v=9dqtW... youteub akount https://www.youtube.com/watch?v=9dqtW... Don Solaris https://www.youtube.com/watch?v=9dqtW... Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang CoolAsCats David Nicklas Quasar Tambe Barsbay Max Levine Mayank M. Mehrota Mars Yentur Mark Rosenthal Dean Fuqua Hypernova Eugene Lawson Chuck Zegar Jordan Young Ratfeast John Hofmann Joseph Salomone Martha Hunt Craig Peterson Science Via Markets Barry Hatfield Thanks to our Patreon Gamma Ray Burst Supporters: Peter Durocher Michael Kers Chris Hicks Mark Vasile Patrick Murray Sultan Alkhulaifi Alex Seto Jared Moore Michal-Peanut Karmi Bernardo Higuera Erik Stein Daniel Lyons Kevin Warne JJ Bagnell J Rejc Amy Jie Avi Goldfinger John Pettit Shannan Catalano Florian Stinglmayr Yubo Du Benoit Pagé-Guitard Nathan Leniz Jessica Fraley Loro Lukic Brandon Labonte David Crane Greg Weiss Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 12 min

    Scientists Have Detected the First Stars

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 21-03-18 What do the first stars in the universe, dark matter, and superior siege engines have in common? 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] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Trebuchet Challenge Winners: Vineet Gala Valerie Sinclair Alex Funiciello David Shearn Gwyn Paske Bruce and Angela Tremain Help translate our videos! https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Previous Episode: Hawking Radiation https://www.youtube.com/watch?v=qPKj0YnKANw Sometimes space news sneaks by without getting much attention. Not everything wows like gravitational waves or spacefaring sportscars. That’s the case with the recent discovery of earliest stars in the universe. In a Nature paper published a few weeks ago, Judd Bowman and collaborators report a signal from the very first stars to form in our universe. The same result also hints at brand new physics that may help explain the nature of dark matter. This result flew under the radar in part because it’s a subtle and clever result that requires a bit of interpretation. Today we’re doing a Space Time Journal Club to explain this discovery. We’ll follow that with the solution to our recent trebuchet challenge question. Written and Hosted by Matt O'Dowd Produced by Rusty Ward Graphics by Grayson Blackmon Assistant Editing and Sound Design by Mike Petrow and Linda Huang Made by Kornhaber Brown (www.kornhaberbrown.com) Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang CoolAsCats David Nicklas Faisal Saud Anton Lifshits Joey Redner Quasar Tambe Barsbay Mayank M. Mehrota Mars Yentur Mark Rosenthal Dean Fuqua Roman Pinchuk Frank Secilia ColeslawPurdie Hypernova Edmund Fokschaner Matthew O’Connor Eugene Lawson Martha Hunt Joseph Salomone Chuck Zegar Jordan Young Ratfeast John Hofmann Barry Hatfield Craig Peterson Kevin Costello Thanks to our Patreon Gamma Ray Burst Supporters: James Hughes Fabian Olesen Kris Fernet Jane Meyers James Flowers Greg Allen TJMadison Denys Ivanov Nick Virtue Alexey Eromenko Nicholas Rose Scott Gossett Mark Vasile Patrick Murray Sultan Alkhulaifi Alex Soto Michal-Peanut Karmi Erik Stein Daniel Lyons Kevin Warne JJ Bagnell J Rejc Avi Goldfinger John Pettit Florian Stinglmayr Benoit Pagé-Guitard Nathan Leniz Brandon Labonte David Crane Greg Weiss Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 15 min

    Noether's Theorem and The Symmetries of Reality

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 16-05-18 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 of a much deeper, more fundamental principle: Noether’s theorem. 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] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_... Previous Episode: How Gaia Changed Astronomy Forever https://www.youtube.com/watch?v=Jdy09... Conservation laws are the cheat codes of physics. They make it possible to solve physics problems that would otherwise be painfully difficult, or even impossible. More than cheat codes – conservation laws are close to the source code – they emerge from profound and simple truths about the basis of reality. They emerge from the fundamental symmetries of nature. The connection between conservation laws and symmetry is encapsulated in Noether’s theorem. But before we dive into this extremely elegant idea, let’s talk about the seeming paradox that inspired it, and the genius who discovered it. Written and hosted by Matt O'Dowd Graphics by Grayson Blackmon Assistant Editing and Sound Design by Mike Petrow and Linda Huang Made by Kornhaber Brown (www.kornhaberbrown.com) Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang CoolAsCats David Nicklas Anton Lifshits Joey Redner Fabrice Eap Quasar Tambe Barsbay Mayank M. Mehrota Mars Yentur Mark Rosenthal Dean Fuqua Roman Pinchuk ColeslawPurdie Hypernova Edmund Fokschaner Matthew O’Connor Eugene Lawson Barry Hatfield Martha Hunt Joseph Salomone Chuck Zegar Craig Peterson Jordan Young Ratfeast John Hofmann Thanks to our Patreon Gamma Ray Burst Supporters: James Hughes Fabian Olesen Kris Fernet Jane Meyers James Flowers Greg Allen Denys Ivanov Nick Virtue Alexey Eromenko Nicholas Rose Scott Gossett Mark Vasile Patrick Murray Sultan Alkhulaifi Alex Seto Michal-Peanut Karmi Erik Stein Kevin Warne JJ Bagnell Avi Goldfinger John Pettit Florian Stinglmayr Benoit Pagé-Guitard Nathan Leniz Brandon Labonte David Crane Greg Weiss Shannan Catalano Brandon Cook Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 20 min

    How Eclipses Demonstrated Our Solar System

    Check Out PBS' Earth Month playlist: https://www.youtube.com/playlist?list=PLnNZYWyBGJ1F8ofFm4H9UTrHxqU8zngK4 Check out the Space Time Merch Store https://www.pbsspacetime.com/shop Of all the astronomical phenomena you can witness, the total solar eclipse has to be the most visceral--the most in-your-face reminder that our reality consists of giant balls of rock spinning around stars. It's also the eclipse and phenomena like it that set us on the path to understanding that reality in the first place. PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE 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 Search the Entire Space Time Library Here: https://search.pbsspacetime.com/ Hosted by Matt O'Dowd Written by Matt Caplan & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producers: Eric Brown & Andrew Kornhaber Executive in Charge for PBS: Maribel Lopez Director of Programming for PBS: Gabrielle Ewing Assistant Director of Programming for PBS: John Campbell 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. © 2024 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 Sponsors John Sronce Bryce Fort Peter Barrett David Neumann Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Mark Rosenthal Quasar Sponsors Grace Biaelcki Glenn Sugden Alex Kern Ethan Cohen Stephen Wilcox Mark Heising Hypernova Sponsors Michael Tidwell Frank Plessers Chris Webb David Giltinan Ivari Tölp Kenneth See Gregory Forfa Bradley Voorhees Scott Gorlick Paul Stehr-Green Ben Delo Scott Gray Антон Кочков Robert Ilardi John R. Slavik Donal Botkin Edmund Fokschaner chuck zegar Jordan Young Daniel Muzquiz Gamma Ray Burst Sponsors Jessica M. Kandal Anthony Crossland Grace Seraph Parliament Stephen Saslow Robert DeChellis Tomaz Lovsin Anthony Leon Leonardo Schulthais Senna Lori Ferris Dennis Van Hoof Koen Wilde Nicolas Katsantonis Joe Pavlovic Justin Lloyd Chuck Lukaszewski Cole B Combs Andrea Galvagni Jerry Thomas Nikhil Sharma John Anderson Bradley Ulis Craig Falls Kane Holbrook Ross Story teng guo Harsh Khandhadia Michael Lev Terje Vold James Trimmier Jeremy Soller Paul Wood Joe Moreira Kent Durham jim bartosh Ramon Nogueira The Mad Mechanic John H. Austin, Jr. Diana S Poljar Faraz Khan Almog Cohen Daniel Jennings Russ Creech Jeremy Reed David Johnston Michael Barton Isaac Suttell Oliver Flanagan Bleys Goodson Mark Delagasse Mark Daniel Cohen Shane Calimlim Tybie Fitzhugh Eric Kiebler Craig Stonaha Frederic Simon John Robinson Jim Hudson Alex Gan David Barnholdt John Funai Adrien Molyneux Bradley Jenkins Amy Hickman Vlad Shipulin Thomas Dougherty King Zeckendorff Dan Warren Joseph Salomone Patrick Sutton Julien Dubois Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 15 min

    Where Are The Worlds In Many Worlds?

    Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Uploaded 13-07-21 Many Worlds interpretation of quantum mechanics proposes that every time a quantum event gets decided, the universe splits so that every possible outcome really does occur. But where exactly are those worlds, and can we ever see them? 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 Hosted by Matt O'Dowd Written by Matt O'Dowd Graphics by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Adriano Leal and Stephanie Faria GFX Visualizations: Katherine Kornei Directed by Andrew Kornhaber Assistant Producer: Setare Gholipour Executive Producers: Eric Brown and Andrew Kornhaber End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0Q Special Thanks to Our Patreon Supporters BIg Bang Supporters Kyle Bulloch Ananth Rao Charlie Mrs. Tiffany Poindexter Leo Koguan Sandy Wu Matthew Miller Scott Gray Ahmad Jodeh Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Fabrice Eap Mark Rosenthal David Nicklas Quasar Supporters Ethan Cohen Stephen Wilcox Christina Oegren Mark Heising Hank S Hypernova Supporters william bryan Joe Moreira Marc Armstrong Scott Gorlick Nick Berard Paul Stehr-Green MuON Marketing Russell Pope Ben Delo L. Wayne Ausbrooks Nicholas Newlin DrJYou Антон Кочков John R. Slavik Mathew Danton Spivey Donal Botkin John Pollock Edmund Fokschaner Matthew O'Connor chuck zegar Jordan Young m0nk Julien Dubois John Hofmann Daniel Muzquiz Timothy McCulloch Gamma Ray Burst Supporters Kent Durham jim bartosh Nubble Chris Navrides Scott R Calkins Carl Scaggs G Mack The Mad Mechanic Ellis Hall John H. Austin, Jr. Diana S Ben Campbell Lawrence Tholl, DVM Faraz Khan Almog Cohen Alex Edwards Ádám Kettinger MD3 Endre Pech Daniel Jennings Cameron Sampson Pratik Mukherjee Geoffrey Clarion Nate Adrian Posor Darren Duncan Russ Creech Jeremy Reed Eric Webster Steven Sartore David Johnston J. King Michael Barton Christopher Barron James Ramsey Drew Hart Justin Jermyn Mr T Andrew Mann Jeremiah Johnson Peter Mertz Isaac Suttell Devon Rosenthal Oliver Flanagan Bleys Goodson Darryl J Lyle Robert Walter Bruce B Ismael Montecel Simon Oliphant Mirik Gogri Mark Daniel Cohen Brandon Lattin Nickolas Andrew Freeman Shane Calimlim Tybie Fitzhugh Robert Ilardi Eric Kiebler Craig Stonaha Martin Skans Michael Conroy Graydon Goss Frederic Simon Tonyface John Robinson A G Kevin Lee Adrian Hatch Yurii Konovaliuk John Funai Cass Costello Tristan Deloche Bradley Jenkins Kyle Hofer Daniel Stříbrný Luaan AlecZero Vlad Shipulin Cody Malte Ubl King Zeckendorff Nick Virtue Scott Gossett Dan Warren Patrick Sutton John Griffith Daniel Lyons DFaulk GrowingViolet Kevin Warne Andreas Nautsch Brandon labonte Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 17 min

    Horizon Radiation

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 17-01-18 Learn about Horizon radiation and why it's essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Previous Episode: What Do Stars Sound Like? https://www.youtube.com/watch?v=TbWyuJYybMA Source material for our Sounds of Stars episode: MPL3D Solar System - Star Sounds" https://www.youtube.com/watch?v=0ogyKgV4KN4 Both theories of relativity, special and general, tell us that many things are observer dependent. Different observers might disagree about the speeds, lengths, or times, but the laws of physics should be the same for everyone. And for two observers with very different, but constant speeds - inertial observers - the vacuum itself should appear the same. Hosted by Matt O'Dowd Written by Graeme Gossel and Matt O'Dowd Produced by Rusty Ward Graphics by Kurt Ross Assistant Editing and Sound Design by Mike Petrow and Meah Denee Barrington Made by Kornhaber Brown (www.kornhaberbrown.com) Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang CoolAsCats David Nicklas William James Sidis Faisal Saud Anton Lifshits Quasar Tambe Barsbay Mayank M. Mehrota Mars Yentur Mark Rosenthal Dean Fuqua Y2 Justin Lloyd Tambe Barsbay Hypernova Edmund Fokschaner Max Levine Matthew O’Connor Eugene Lawson Martha Hunt Joseph Salomone Chuck Zegar Jordan Young Ratfeast John Hofmann Thanks to our Patreon Gamma Ray Burst Supporters: Brandon Cook Mechanically Cryptic Denys Ivanov Nick Virtue Alexey Eromenko Nicholas Rose Scott Gossett Mark Dykstra Chris Hicks Mark Vasile Patrick Murray Sultan Alkhulaifi Alex Seto Michal-Peanut Karmi Erik Stein Daniel Lyons Kevin Warne JJ Bagnell J Rejc Amy Jie Avi Goldfinger John Pettit Shannan Catalano Florian Stiglmayr Benoit Pagé-Guitard Nathan Leniz Jessica Fraley Loro Lukic Brandon Labonte David Crane Greg Weiss Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 17 min

    Have We SOLVED The Black Hole Information Paradox with Wormholes?

    PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE Uploaded 15-06-22 Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Black holes are very real, but are also a theoretical nightmare. It turns out that in order to make sense of their paradoxical nature, every black hole has to be thought of as a multitude of imaginary black holes, all connected by wormholes. And you thought the universe couldn’t get any weirder. 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/ Prior Episodes Mentioned In this Video: Black Hole Information Paradox - https://youtu.be/9XkHBmE-N34 How Quantum Entanglement Creates Entropy - https://youtu.be/vgYQglmYU-8 Holographic Principle - https://youtu.be/klpDHn8viX8 Feynman’s Infinite Paths - https://youtu.be/vSFRN-ymfgE Hosted by Matt O'Dowd Written by Euan McLean and Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Adriano Leal and Stephanie Faria GFX Visualizations: Ajay Manuel Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producers: Eric Brown and Andrew Kornhaber Executives in Charge (PBS): Adam Dylewski, Maribel Lopez Director of Programming (PBS): Gabrielle Ewing Spacetime is produced by Kornhaber Brown for PBS Digital Studios. This program is produced by Kornhaber Brown, which is solely responsible for its content. © 2022 PBS. All rights reserved. End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka Special Thanks to Our Patreon Supporters Big Bang Adam Hillier Bryce Fort Peter Barrett David Neumann Charlie Leo Koguan Ahmad Jodeh Alexander Tamas Morgan Hough Amy Juan Benet Vinnie Falco Fabrice Eap Mark Rosenthal David Nicklas Quasar Alex Kern Ethan Cohen Stephen Wilcox Christina Oegren Mark Heising Hank S Hypernova william bryan Gregory Forfa Kirk Honour Mark Evans drollere Joe Moreira Marc Armstrong Scott Gorlick Paul Stehr-Green Russell Pope Ben Delo Scott Gray Антон Кочков John R. Slavik Mathew Donal Botkin John Pollock Edmund Fokschaner Joseph Salomone chuck zegar Jordan Young Daniel Muzquiz Gamma Ray Burst Harsh Khandhadia Thomas Tarler Sean McCaul Carsten Quinlan Susan Albee Frank Walker Matt Q WhizBangery Avi Yashchin MHL SHS Kory Kirk Terje Vold Anatoliy Nagornyy comboy Brett Baker Jonathan Conerly Andre Stechert Ross Bohner Paul Wood Kent Durham jim bartosh Nubble Scott R Calkins The Mad Mechanic Ellis Hall John H. Austin, Jr. Diana S Ben Campbell Faraz Khan Almog Cohen Alex Edwards Ádám Kettinger MD3 Endre Pech Daniel Jennings Cameron Sampson Geoffrey Clarion Darren Duncan Russ Creech Jeremy Reed Eric Webster David Johnston Web Browser Michael Barton Christopher Barron Mr T Andrew Mann Isaac Suttell Devon Rosenthal Oliver Flanagan Bleys Goodson Robert Walter Bruce B Simon Oliphant Mirik Gogri Mark Delagasse Mark Daniel Cohen Nickolas Andrew Freeman Shane Calimlim Tybie Fitzhugh Robert Ilardi Eric Kiebler Craig Stonaha Martin Skans The Art of Sin Graydon Goss Frederic Simon Tonyface John Robinson A G David Neal justahat John Funai Tristan Bradley Jenkins Kyle Hofer Daniel Stříbrný Luaan Cody Thomas Dougherty King Zeckendorff Scott Gossett Dan Warren Patrick Sutton John Griffith Daniel Lyons DFaulk Kevin Warne Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 24 min

    How To Simulate The Universe With DFT

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE Uploaded 12-01-22 Take the Space Time Fan Survey Here: https://forms.gle/wS4bj9o3rvyhfKzUA ***** Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime If you used every particle in the observable universe to do a full quantum simulation, how big would that simulation be? At best a large molecule. That’s how insanely information dense the quantum wavefunction really is. And yet we routinely simulate systems with thousands, even millions of particles. How? By cheating. Using the ultimate compression algorithm: Density Functional Theory (DFT). Let’s learn how to cheat the universe. 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 Hosted by Matt O'Dowd Written by Graeme Gossel and Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Adriano Leal and Stephanie Faria GFX Visualizations: Ajay Manuel Directed by Andrew Kornhaber Assistant Producer: Setare Gholipour Executive Producers: Eric Brown and Andrew Kornhaber Executives in Charge (PBS): Adam Dylewski, Maribel Lopez Director of Programming (PBS): Gabrielle Ewing Spacetime is produced by Kornhaber Brown for PBS Digital Studios. This program is produced by Kornhaber Brown, which is solely responsible for its content. © 2021 PBS. All rights reserved. End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka Special Thanks to Our Patreon Supporters Big Bang Supporters David Taiclet Ben Dimock Daniel Alexiuc Nenado763 Pravin Mansukhani Peter Barrett Nils Anderson David Neumann Charlie Leo Koguan Sandy Wu Matthew Miller Ahmad Jodeh Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Fabrice Eap Mark Rosenthal David Nicklas Henry Van Styn Quasar Supporters Alex Kinsey OnlineBookClub.org Alex Kern Ethan Cohen Stephen Wilcox Yogi B Christina Oegren Mark Heising Hank S Hypernova Supporters william bryan drollere Joe Moreira Marc Armstrong Scott Gorlick Nick Berard Paul Stehr-Green Alexander Price Adam Walters Russell Pope Ben Delo Nicholas Newlin Scott Gray Антон Кочков John R. Slavik Mathew Donal Botkin John Pollock Edmund Fokschaner Joseph Salomone chuck zegar Jordan Young m0nk Daniel Muzquiz Gamma Ray Burst Supporter Avi Yashchin Michael H Lev (SHS '78) Kory Kirk Terje Vold Anatoliy Nagornyy comboy Brett Baker Jeremy Soller Jonathan Conerly Andre Stechert Ross Bohner Paul Wood Kent Durham jim bartosh Nubble Chris Navrides Scott R Calkins The Mad Mechanic Ellis Hall John H. Austin, Jr. Diana S Ben Campbell Lawrence Tholl, DVM Faraz Khan Almog Cohen Alex Edwards Ádám Kettinger MD3 Endre Pech Daniel Jennings Cameron Sampson Pratik Mukherjee Geoffrey Clarion Nate Darren Duncan Russ Creech Jeremy Reed Eric Webster David Johnston J. King Michael Barton Christopher Barron James Ramsey Justin Jermyn Mr T Andrew Mann Isaac Suttell Devon Rosenthal Oliver Flanagan Bleys Goodson Robert Walter Bruce B Ismael Montecel Simon Oliphant Mirik Gogri Mark Delagasse Mark Daniel Cohen Brandon Lattin Nickolas Andrew Freeman Shane Calimlim Tybie Fitzhugh Robert Ilardi Eric Kiebler Craig Stonaha Martin Skans The Art of Sin Graydon Goss Frederic Simon Tonyface John Robinson A G Kevin Lee justahat John Funai Cass Costello Tristan Bradley Jenkins Kyle Hofer Daniel Stříbrný Luaan AlecZero Vlad Shipulin Cody Malte Ubl King Zeckendorff Nick Virtue Scott Gossett Dan Warren Patrick Sutton John Griffith Daniel Lyons DFaulk GrowingViolet Kevin Warne Andreas Nautsch Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 21 min

    Does Life Need a Multiverse to Exist?

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Uploaded 11-11-19 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 is capable of producing and supporting life. How am I going? Two for two? Let’s try for three: therefore there are countless universes. Hmmm. Did I break my streak? Hosted by Matt O'Dowd Written by Matt O'Dowd Graphics by Leonardo Scholzer and Adriano Leal Directed by: Andrew Kornhaber Executive Producers: Eric Brown and Andrew Kornhaber End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0Q Our universe seems to operate according to a set of fundamental rules that we try to understand and model with the equations of our laws of physics. Those equations always include one or more fundamental constants - simple numbers that set the scale for the equation. We can’t determine the values of these constants from pure theory - we have to measure them in the real universe. These are things like the speed of light, the Planck constant, the masses of the elementary particles, and the constants defining the relative strengths of the fundamental forces - the so-called coupling constants. Special Thanks to Our Patreon Supporters Big Bang Alexander Tamas Craig Stonaha David Barnholdt David Nicklas Fabrice Eap John S Juan Benet matt miller Morgan Hough Quasar Mark Heising Mark Rosenthal Vinnie Falco Hypernova Chuck Zegar Danton Spivey Donal Botkin Edmund Fokschaner Hank S John Hofmann John R. Slavik Jordan Young Joseph Salomone Mathew Matthew O'Connor Syed Ansar Timothy McCulloch Gamma Ray Burst A G Adrian Hatch Adrien Molyneux AlecZero Andreas Nautsch Bradley Jenkins Brandon labonte Dan Warren Daniel Lyons David Bethala DFaulk Eric Kiebler Frederic Simon Geoffrey Short Graydon Goss Greg Smith James Flowers Jamie Frederick John Funai John Griffith John Michael Kerr John Pollock John Robinson Jonathan Nesfeder Joseph Dillman Josh Thomas Kevin Lee Kevin Warne Kyle Hofer Malte Ubl Michael Conroy Nick Virtue Nick Wright Paul Rose Scott Gossett Sean Warniaha Steve Bradshaw Tatiana Vorovchenko Tim Stephani Tonyface Yurii Konovaliuk Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 19 min

    Electroweak Theory and the Origin of the Fundamental Forces

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Uploaded 04-11-20 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 single, grand symmetry. But how does one force separate into multiple? And how do the forces of nature arise from mathematical symmetries in the first place? 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.mp/1a6eb8f2717d/spacetime Hosted by Matt O'Dowd Written by Graeme Gossel and Matt O'Dowd Graphics by Leonardo Scholzer, Yago Ballarini, and Pedro Osinski Directed by: Andrew Kornhaber Camera Operator: Setare Gholipour Executive Producers: Eric Brown and Andrew Kornhaber End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0Q Special Thanks to Our Patreon List Big Bang Supporters Sean Maddox Marty Yudkovitz Brodie Rao Scott Gray Robert Doxtator Ahmad Jodeh Radu Negulescu Alexander Tamas Morgan Hough Juan Benet Fabrice Eap Mark Rosenthal David Nicklas Quasar Supporters Justin Lloyd Christina Oegren Mark Heising Vinnie Falco Hypernova William Bryan L. Wayne Ausbrooks Nicholas Newlin Mark Matthew Bosko Justin Jermyn Jason Finn Антон Кочков Alec S-L Julian Tyacke Syed Ansar John R. Slavik Mathew Danton Spivey Donal Botkin John Pollock Edmund Fokschaner Joseph Salomone Matthew O'Connor Chuck Zegar Jordan Young m0nk Hank S John Hofmann Timothy McCulloch Gamma Ray Burst Jason Normandin Cameron Sampson Pratik Mukherjee Geoffrey Clarion Astronauticist Nate Darren Duncan Lily kawaii Russ Creech Jeremy Reed Max Bernard Magistrala Хемус [Kybrit] Bill Blair Eric Webster Steven Sartore James Younger David Johnston J. King Michael Barton Christopher Barron James Ramsey Mr T Andrew Mann Jeremiah Johnson fieldsa eleanory Peter Mertz Kevin O'Connell Richard Deighton Isaac Suttell Devon Rosenthal Oliver Flanagan Dawn M Fink Bleys Goodson Darryl J Lyle Robert Walter Bruce B Ismael Montecel M D Andrew Richmond Simon Oliphant Mirik Gogri David Hughes Mark Daniel Cohen Brandon Lattin Yannick Weyns Nickolas Andrew Freeman Brian Blanchard Shane Calimlim Tybie Fitzhugh Robert Ilardi Astaurus Eric Kiebler Tatiana Vorovchenko Craig Stonaha Michael Conroy Graydon Goss Frederic Simon Greg Smith Sean Warniaha Tonyface John Robinson A G Kevin Lee Adrian Hatch Yurii Konovaliuk John Funai Cass Costello Geoffrey Short Bradley Jenkins Kyle Hofer Tim Stephani Luaan AlecZero Malte Ubl Nick Virtue Scott Gossett David Bethala Dan Warren Patrick Sutton John Griffith Daniel Lyons DFaulk Kevin Warne Andreas Nautsch Brandon labonte Lucas Morgan Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 23 min

    Is ACTION The Most Fundamental Property in Physics?

    Learn More About NordVPN at: https://nordvpn.com/spacetime Uploaded 02-11-21 It’s about time we discussed an obscure concept in physics that may be more fundamental than energy and entropy and perhaps time itself. That’s right - the time has come for Action. 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://www.pbsspacetime.com/shop Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Hosted by Matt O'Dowd Written by Fernando Franco Félix and Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Adriano Leal and Stephanie Faria GFX Visualizations: Ajay Manuel Directed by Andrew Kornhaber Assistant Producer: Setare Gholipour Executive Producers: Eric Brown and Andrew Kornhaber End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka Special Thanks to Our Patreon Supporters Big Bang Supporters Ben Dimock Daniel Alexiuc Pravin Mansukhani Peter Barrett Nils Anderson David Neumann Ari Paul Charlie Mrs. Tiffany Poindexter Leo Koguan Sandy Wu Matthew Miller Ahmad Jodeh Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Fabrice Eap Mark Rosenthal David Nicklas Henry Van Styn Quasar Supporters Nenado763 Alex Kern Michael Schneider Ethan Cohen Stephen Wilcox Christina Oegren Mark Heising Hank S Hypernova Supporters william bryan Justin Smith drollere Joe Moreira Marc Armstrong Elizabeth Smith Scott Gorlick Nick Berard Paul Stehr-Green MuON Marketing Russell Pope Ben Delo Nicholas Newlin Scott Gray Антон Кочков John R. Slavik Mathew Donal Botkin John Pollock Edmund Fokschaner Joseph Salomone Matthew O'Connor chuck zegar Jordan Young m0nk John Hofmann Daniel Muzquiz Timothy McCulloch Gamma Ray Burst Supporters Justin Lloyd comboy Brett Baker Daniel Morgan Jeremy Soller Jonathan Conerly Andre Stechert Ross Bohner Farhan Wali Paul Wood Kent Durham jim bartosh Nubble Chris Navrides Scott R Calkins Carl Scaggs The Mad Mechanic Ellis Hall John H. Austin, Jr. Diana S Ben Campbell Lawrence Tholl, DVM Faraz Khan Almog Cohen Alex Edwards Ádám Kettinger MD3 Endre Pech Daniel Jennings Cameron Sampson Pratik Mukherjee Geoffrey Clarion Nate Adrian Posor Darren Duncan Russ Creech Jeremy Reed Eric Webster David Johnston J. King Michael Barton Christopher Barron James Ramsey Justin Jermyn Mr T Andrew Mann Peter Mertz Isaac Suttell Devon Rosenthal Oliver Flanagan Bleys Goodson Robert Walter Bruce B Ismael Montecel Simon Oliphant Mirik Gogri Mark Delagasse Mark Daniel Cohen Brandon Lattin Nickolas Andrew Freeman Protius Protius Shane Calimlim Tybie Fitzhugh Robert Ilardi Eric Kiebler Craig Stonaha Martin Skans Michael Conroy Graydon Goss Frederic Simon Tonyface John Robinson A G Kevin Lee Adrian Hatch Yurii Konovaliuk John Funai Cass Costello Tristan Deloche Bradley Jenkins Kyle Hofer Daniel Stříbrný Luaan AlecZero Vlad Shipulin Cody Malte Ubl King Zeckendorff Nick Virtue Scott Gossett Dan Warren Patrick Sutton John Griffith Daniel Lyons DFaulk GrowingViolet Kevin Warne Andreas Nautsch Brandon labonte Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 23 · 12 min

    Zero-Point Energy Demystified

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 08-11-17 Let’s talk about the mysterious zero-point energy and what it really can, and really can’t do. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Previous Episode: The Vacuum Challenge | Space Time https://www.youtube.com/watch?v=n6jAOV7bZ3Y The quantum field theory predicts that there exists an energy of the vacuum resulting from the non-zero zero-point energies of the quantum fields that fill our universe. As we discussed in our last episode on the vacuum catastrophe, this mismatch between the measured and theoretical values of vacuum energy is one of the greatest unsolved problems in physics. Written and Hosted by Matt O'Dowd Produced by Rusty Ward Graphics by Kurt Ross Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang BITISM CoolAsCats David Nicklas Quasar Tambe Barsbay Mayank M. Mehrota Mars Yentur Mark Rosenthal Dean Fuqua Y2 Justin Lloyd Hypernova Edmund Fokschaner Max Levine Matthew O’Connor Eugene Lawson Barry Hatfield Martha Hunt Joseph Salomone Chuck Zegar Craig Peterson Jordan Young Ratfeast John Hofmann Thanks to our Patreon Gamma Ray Burst Supporters: Denys Ivanov Nick Virtue Alexey Eromenko Nicholas Rose Scott Gossett Mark Dykstra Chris Hicks Mark Vasile Patrick Murray Sultan Alkhulaifi Alex Seto Michal-Peanut Karmi Erik Stein Daniel Lyons Kevin Warne JJ Bagnell J Rejc Amy Jie Avi Goldfinger John Pettit Shannan Catalano Florian Stiglmayr Yubo Du Benoit Pagé-Guitard Nathan Leniz Jessica Fraley Loro Lukic Brandon Labonte David Crane Greg Weiss Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 22 · 21 min

    Will We Ever Find Alien Life?

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 25-10-18 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 depressingly persistent absence of aliens. 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] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_... Previous Episode: What are the Strings in String Theory? https://www.youtube.com/watch?v=k6TWO-ESC6A&t=717s Hosted by Matt O'Dowd Written by Matt O'Dowd Graphics by Luke Maroldi Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) When Enrico Fermi uttered the words, “Where is everybody?” he was succinctly summarizing what has become known as the Fermi paradox. In short: in a galaxy of hundreds of billions of stars, each of which having billions of years to spawn life and civilization, isn’t it odd that none have made themselves apparent to us. Enrico Fermi was, supposedly, using this as an argument against the plausibility of interstellar travel. If aliens can travel between the stars, why haven’t they visited? But the paradox is much broader than this. There are several ways that an advanced civilization could give away their presence. Radio transmissions, robotic probes, or star-blotting solar arrays. A series of very recent surveys of our galaxy reveal none of the above, while at the same time proving the abundance of potentially habitable worlds. The Fermi paradox has become only more paradoxical, and these surveys are finally powerful enough to draw some serious conclusions about the rarity of advanced civilizations AND about the chance of us ever becoming one. Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang Justin Lloyd Anton Lifshits CoolAsCats David Nicklas Fabrice Eap Juan Benet Quasar Dean Fuqua James Flowers Mark Rosenthal Roman Pinchuk Tambe Barsbay Vinnie Falco Hypernova Chuck Zegar Dan Harris Donal Botkin Edmund Fokschaner John Hofmann Jordan Young Joseph Salomone Martha Hunt Matthew O’Connor Ratfeast Thanks to our Patreon Gamma Ray Burst Supporters: Alexander Rodriguez Alexey Eromenko Brandon Cook Brandon Labonte Daniel Lyons David Crane Fabian Olesen Fauzan Ardhana Greg Allen Greg Weiss Jack Frosch James Hughes JJ Bagnell Jon Folks Joseph Emison Josh Thomas Kevin Warne Malte Ubl Mark Vasile Nathan Leniz Nicholas Rose Nick Virtue Scott Gossett Shannan Catalano Shawn Azman Tommy Mogensen سلطان الخليفي Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

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