Does Axionic Dark Matter Fuse Galaxies Together?

The Equation That Illuminates (Nearly) Everything!

Check Out Rogue History On PBS Origins: https://youtu.be/xuT35ud41QQ 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 The Standard Model of particle physics is arguably the most successful theory in the history of physics. It predicts the results of experiments with a numerical precision unmatched by any other branch of science, and it does so almost unfailingly. The theory is encapsulated in a single equation known as the Standard Model Lagrangian. Today we’re going to explain to you how it works! Want to Dive Deeper into the Standard Model Lagrangian? Check out: https://www.youtube.com/watch?v=kixAljyfdqU&list=PLsPUh22kYmNBgF_VMMLHFK0lbQGlVGk3v&ab_channel=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/ Hosted by Matt O'Dowd Written by Fernando Franco Felix & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Caique Oliveira, Adriano Leal & 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. © 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 Sponsors Ankur Anand Ryan Salsamendi Steffen Bendel Gautam Shine NullBlox.ZachryWilsn Adam Hillier Bryce Fort Peter Barrett David Neumann Charlie Leo Koguan Alexander Tamas Morgan Hough Amy Hickman Juan Benet Vinnie Falco Fabrice Eap Mark Rosenthal David Nicklas Quasar Sponsors Vivaan Vaka Glenn Sugden Sujasha Gupta Vaka Vikram Vaka Alex Kern Ethan Cohen Stephen Wilcox Christina Oegren Mike Conroy Mark Heising Hank S Hypernova Sponsors Ryan Moser David Giltinan Ivari Tölp Vyce Ailour Brandon Paddock Oneamazinguy Ken S 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 John Hofmann Daniel Muzquiz Gamma Ray Burst Supporters Walter Montalvo Andrea Galvagni Larka Jerry Thomas Nikhil Sharma Alexander Gruber Jonathan Cordovano John Anderson Scott Hannum Paul Widden Bradley Ulis Craig Falls Kane Holbrook John Yaraee Ross Story teng guo Mason Dillon Harsh Khandhadia Thomas Tarler bsgbryan Sean McCaul Susan Albee Frank Walker Matt Q MHL SHS Terje Vold James Trimmier Anatoliy Nagornyy comboy Andre Stechert Paul Wood Kent Durham jim bartosh Nubble Ramon Nogueira The Mad Mechanic Ellis Hall John H. Austin, Jr. Diana S Faraz Khan Almog Cohen Alex Edwards Ádám Kettinger MD3 Endre Pech Daniel Jennings Cameron Sampson Geoffrey Clarion Russ Creech Jeremy Reed Eric Webster David Johnston Web Browser Michael Barton Mr T Andrew Mann Isaac Suttell Devon Rosenthal Oliver Flanagan Bleys Goodson Robert Walter Bruce B 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 A G David Neal justahat John Funai Tristan Bradley Jenkins Daniel Stříbrný Luaan Cody Thomas Dougherty King Zeckendorff Dan Warren Patrick Sutton John Griffith Da Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Do Neutron Stars Gleam Within Dark Matter?

👉 Head to https://brilliant.org/spacetime/ for a 30-day free trial + 20% off your annual subscription Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Neutron stars aren't dark matter--we figured that out a while ago. But new research is telling us that they may be dark matter factories. They may produce the exotic axion, one of the most popular dark matter candidates. 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 Caplan, Anirudh Prabhu, & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria 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: 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. Journal Papers Referenced In Episode: Axion clouds around neutron stars: https://journals.aps.org/prx/abstract/10.1103/PhysRevX.14.041015 Polar cap pair cascades as the source of pulsar radio emission: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.245101 Axions can be produced above pulsar polar caps: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.104.055038 Detailed simulations of polar cap cascades: https://iopscience.iop.org/article/10.3847/2041-8213/ac2157 Constraints on axions from non-observation of radio emission from 27 pulsars: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.131.111004 Pulsar nulling from axion clouds: https://journals.aps.org/prl/accepted/99071Yf5Zed14387541d3dd31bdf5002c85cc2299 End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka Space Time Was Made Possible In Part By: Big Bang Wojciech Szymski Bryce Fort Peter Barrett Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Mark Rosenthal Supernova Grace Biaelcki Glenn Sugden Ethan Cohen Stephen Wilcox Mark Heising Hypernova Richard Pavlicek Dean Galvin Michael Tidwell Robert DeChellis Stephen Spidle Chris Webb Justin Lloyd David Giltinan Kenneth See Gregory Forfa Alex Kern Scott Gorlick Paul Stehr-Green Ben Delo Scott Gray Антон Кочков Robert Ilardi John R. Slavik Donal Botkin Edmund Fokschaner Chuck Zegar Daniel Muzquiz Gamma Ray Burst Satwik Pani Param Saxena John De Witt Nathaniel Bennett Sandhya Devi Michael Oulvey Arko Provo Mukherjee Mike Purvis Christopher Wade Anthony Crossland Grace Seraph Stephen Saslow Tomaz Lovsin Anthony Leon Lori Ferris Koen Wilde Nicolas Katsantonis Richard Steenbergen gmmiddleton Joe Pavlovic Chuck Lukaszewski Cole B. Combs Andrea Galvagni Jerry Thomas Nikhil Sharma John Anderson Bradley Ulis Craig Falls Kane Holbrook Ross Story Harsh Khandhadia Jammer Matt Quinn Michael Lev Rad Antonov Terje Vold James Trimmier Jeremy Soller Paul Wood Kent Durham jim bartosh John H. Austin, Jr. Diana S Poljar Faraz Khan Almog Cohen Daniel Jennings Jeremy Reed David Johnston Michael Barton Isaac Suttell Bleys Goodson Mark Delagasse Mark Daniel Cohen Shane Calimlim Tybie Fitzhugh Eric Kiebler Craig Stonaha Frederic Simon Jim Hudson Alex Gan John Funai Adrien Molyneux Bradley Jenkins Vlad Shipulin Justin Waters Thomas Dougherty Dan Warren Joseph Salomone Julien Dubois Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Do Black Holes Have to Remain Black?

Check out the Space Time Merch Store https://crowdmade.com/collections/pbsspacetime Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime The primary characteristic that defines black holes is in the name. Black holes are black. The gravitational pull at the event horizon is so powerful that not even light can escape. In this case, black means absence of light. We also think of black as indicating absence of colour. But it turns out there is a way to make a coloured black hole—as long as by colour you mean quantum chromodynamic charge. PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE 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 Andrea Quaranta & 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 Wojciech Szymski First Principles Foundation Bryce Fort Peter Barrett David Neumann Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Mark Rosenthal Daniel Muzquiz Supernova Grace Biaelcki Glenn Sugden Ethan Cohen Stephen Wilcox Amy Hickman Mark Heising Hypernova Dean Galvin Michael Tidwell Robert DeChellis Chris Webb David Giltinan Ivari Tölp Kenneth See Gregory Forfa Alex Kern drollere Bradley Voorhees Scott Gorlick Paul Stehr-Green Ben Delo Scott Gray Антон Кочков Robert Ilardi John R. Slavik Mathew Donal Botkin Edmund Fokschaner chuck zegar Gamma Ray Burst Sponsors Sandhya Devi Michael Oulvey Neil Moore Robin Sur Arko Provo Mukherjee Mike Purvis Christopher Wade Anthony Crossland treborg777 Grace Seraph Stephen Saslow Tomaz Lovsin Anthony Leon Leonardo Schulthais Senna Lori Ferris Koen Wilde Nicolas Katsantonis Richard Steenbergen 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 Harsh Khandhadia Matt Quinn Michael Lev Rad Antonov Terje Vold James Trimmier Jeremy Soller Paul Wood Kent Durham jim bartosh John H. Austin, Jr. Diana S 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 Vlad Shipulin Thomas Dougherty Dan Warren Joseph Salomone Julien Dubois Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

The FRESH SCIENCE of Moon Formation

To Learn More Languages Check Out: https://speakly.app.link/Speakly 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 Einstein once asked whether “the moon exists only when I look at it?". It was rhetorical objection to the idea that measurement in quantum mechanics causes reality to become real. But there was a time when the moon didn’t exist, and then hours later suddenly did. At least, according to the latest simulations of its formation. Check Out Matt on the Theories of Everything Podcast: https://youtu.be/T6xLFRHW-IY 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 Caplan & Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini, Pedro Osinski, Caique Oliveira, Adriano Leal & 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 Special Thanks to Our Patreon Supporters Big Bang Sponsors Tim O’Rourke Ryan Salsamendi Steffen Bendel Gautam Shine Bryce Fort Peter Barrett David Neumann Leo Koguan 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 Hank S Hypernova Sponsors Ryan Moser David Giltinan Ivari Tölp Vyce Ailour Ken S Kirk Honour drollere Joe Moreira Bradley Voorhees Marc Armstrong Scott Gorlick Paul Stehr-Green Ben Delo Scott Gray Антон Кочков John R. Slavik Mathew David S. Cerutti Donal Botkin John Pollock Edmund Fokschaner chuck zegar Jordan Young John Hofmann Daniel Muzquiz Gamma Ray Burst Joe Pavlovic Jswcp Ryan McGaughy Mark West Hypothasies Justin Lloyd Chuck Lukaszewski Edward Hodapp Kevin Tillery Cole Marc Forand D. Delair Walter Montalvo Andrea Galvagni Jerry Thomas Nikhil Sharma Alexander Gruber Jonathan Cordovano John Anderson Scott Hannum Paul Widden Bradley Ulis Craig Falls Kane Holbrook Ross Story teng guo Mason Dillon Harsh Khandhadia Thomas Tarler bsgbryan Sean McCaul Susan Albee Frank Walker Matt Q MHL SHS Terje Vold James Trimmier Anatoliy Nagornyy comboy Andre Stechert Paul Wood Kent Durham jim bartosh Nubble Ramon Nogueira The Mad Mechanic Ellis Hall John H. Austin, Jr. Diana S Faraz Khan Almog Cohen Alex Edwards Ádám Kettinger MD3 Endre Pech Daniel Jennings Cameron Sampson Geoffrey Clarion Russ Creech Jeremy Reed David Johnston Web Browser Michael Barton Mr T Isaac Suttell Devon Rosenthal Oliver Flanagan Bleys Goodson Robert Walter 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 A G David Barnholdt David Neal justahat John Funai Tristan Bradley Jenkins Daniel Stříbrný Luaan Cody Brumfield Thomas Dougherty King Zeckendorff Dan Warren Patrick Sutton John Griffith DFaulk Sam Long Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

The Crisis In Physics: Are We Failing To Detect 17 Layers of Reality?

Remove your personal information from the web at https://joindeleteme.com/SPACETIME Big things are made of smaller things, and those smaller things are made of smaller things still. That’s reductionism in a nutshell, and digging our way to the smallest layer has been one of the primary goals of physics for ever. But what if, just before we reach the bottom, we find out that reductionism fails? 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/ Hosted by Matt O'Dowd Written by Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria 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: 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. © 2025 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 Tj Steyn Bryce Fort Peter Barrett Alexander Tamas Morgan Hough Juan Benet Vinnie Falco Mark Rosenthal Supernova Grace Biaelcki Glenn Sugden Ethan Cohen Stephen Wilcox Robert Ilardi Mark Heising Hypernova Thomas Mouton Zachary Haberman Spencer Jones Dean Galvin Mike Purvis Michael Tidwell Stephen Saslow Stephen Spidle Massimiliano Pala Justin Lloyd David Giltinan Kenneth See Gregory Forfa Alex Kern drollere Scott Gorlick Paul Stehr-Green Ben Delo Scott Gray Антон Кочков John R. Slavik Donal Botkin chuck zegar Daniel Muzquiz Gamma Ray Burst Todd J Lerner Sound Reason Michael Clark Collin Dutrow Marion Lang Kurt Gottselig Bryan White Eric Raschke aaron pinto Kacper Cieśla Satwik Pani Param Saxena John De Witt Nathaniel Bennett Sandhya Devi Michael Oulvey Arko Provo Mukherjee Christopher Wade Anthony Crossland treborg777 Robert DeChellis Tomaz Lovsin Anthony Leon Nick Hoffenstoffer III Lori Ferris Koen Wilde Nicolas Katsantonis Sean Owen Richard Steenbergen Joe Pavlovic Chuck Lukaszewski Jerry Thomas John Anderson Bradley Ulis Craig Falls Kane Holbrook Ross Story Harsh Khandhadia Michael Lev Rad Antonov Terje Vold James Trimmier Jeremy Soller Paul Wood Kent Durham jim bartosh John H. Austin, Jr. Diana S Faraz Khan Almog Cohen Daniel Jennings Ben McIntosh David Johnston Michael Barton Isaac Suttell Bleys Goodson Mark Delagasse Mark Daniel Cohen Shane Calimlim Tybie Fitzhugh Eric Kiebler Craig Stonaha Frederic Simon Tonyface Matthew Johnson Michael Purcell John Funai Adrien Molyneux Bradley Jenkins Vlad Shipulin Walter Flinn Thomas Dougherty Zac Sweers Dan Warren Joseph Salomone Cal Stephens Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]