The Big Bang is the reigning explanation for our universe’s origin—but what if it’s wrong? This episode dives into cosmic controversies and the theories that challenge everything we thought we knew.



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Credits:

What If the Big Bang Never Happened?

Episode 730.1; July 6, 2025

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator





What If the Big Bang Never Happened?

How close are we to living in space, and what will it take to survive, both out there and here on Earth? Join us for an inspiring conversation with scientist and author Richard M. Anderson, as we explore the bold imagination, cutting-edge science, and urgent truths behind his two powerful books: The Evolution of Life: Big Bang to Space Colonies and Outbound: Islands in the Void. Tune in for a thought-provoking look at where we came from, where we’re headed, and what it means for the future of humanity.
 
Moments with Marianne airs in the Southern California area on KMET1490AM & 98.1 FM, an ABC Talk News Radio Affiliate!  https://www.kmet1490am.com

Richard M. Anderson is an alumnus of San Jose State University, with a master of arts degree in microbiology with an emphasis in molecular biology. Throughout his career The Evolution of Life: Big Bang to Space Colonies has been a dream of his that finally came to fruition. It is backed by years of research to supplement and verify its content.  Richard's second book, Outbound: Islands in the Void is the first in a series of sci-fi fiction, the second of the series is due out soon, Outbound: Becoming Meta Mars. Richard and his wife live in the San Francisco Bay area, close to their three children and their families. https://richardandersonauthor.com

Order The Evolution of Life on Amazon: https://a.co/d/7DSM4MR 

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For more show information visit: www.MariannePestana.com

The Evolution of Life with Richard Anderson

Perhaps the strongest evidence we've ever acquired in support of the Big Bang has been the discovery of the leftover radiation from its early, hot, dense state: today's cosmic microwave background, or CMB. While there were many competing ideas for our cosmic origins, only the Big Bang predicted a uniform, omnidirectional bath of blackbody radiation: exactly what the CMB is.

But it turns out the CMB encodes much more information than just our cosmic origins; it allows us to map the very early Universe from when it was just 380,000 years old, and gives us vital information about what has happened to light from that time over its 13.8 billion year journey to our eyes. It encodes information about our cosmic expansion history, about dark matter and dark energy, about intervening galaxy clusters, and about the material here in our own galaxy, along with much more. It is, arguably, the richest source of information from any one single observable in our entire Universe.

Here to guide us through what CMB scientists are working on here in 2025, including what we've learned and what we're still trying to find out, I'm so pleased to welcome Dr. Patricio Gallardo to the show. We've got more than an hour and a half of quality science to go through, and by the end, I bet you'll be more excited about the upcoming Simons Observatory, designed to measure the CMB to higher precision than ever before, than you knew you should be. Enjoy!

(This image shows the Large Aperture Telescope's colossal, 6-meter primary and secondary mirrors at the Simons Observatory in February of 2025. The telescope has already seen first light, and will soon begin delivering new CMB science as never before. Credit: M. Devlin/Simons Observatory)


Starts With A Bang #119 - The CMB

Science has shown us the universe began with a Big Bang but what about its endgame? Will everything burn out and freeze over, or collapse in on itself, or rip into shreds? How far away are we from this happening?

Embark on a cosmic journey to the end of the universe with astrophysicist, science communicator, and author of The End of Everything (Astrophysically Speaking), Katie Mack. 

In a public talk, Katie takes us through the latest scientific tolls and data, from space telescopes to particle colliders, to explain the big ideas and key theories of the death of the universe.

Professor Tara Murphy, Head of the School of Physics, hosts this event. 

This podcast is a recording of a live public event held on 10 July 2025. For more links and resources, including the transcript, visit Sydney Ideas website:  bit.ly/40WQfb3

Katie Mack: The end of everything

Join us as we journey beyond the birth of the universe to unravel the mysteries of what might have preceded the Big Bang—and whether time itself had a beginning.

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Use the link  https://gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $36.


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Credits:
Before the Big Bang - What Came Before Time?
Episode 738; July 20, 2025
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
0:00 Intro Asking the Impossible
2:08 The Limits of Time and Spacetime
7:45 Beyond the Big Bang: Alternate Beginnings
14:38 Other Realities: Higher Dimensions and Shadow Universes
18:28 Emergent Time
22:38 Bubble Collisions and Multiverse Scars
24:44 Conclusion: What Came Before Time?

Before the Big Bang - What Came Before Time?

Before the Big Bang - What Came Before Time? (Narration Only)

A visceral descent into cosmic inevitability, The End fuses bone-rattling and hard heavy bass, fragmented glitch percussion, with both heavy and warped synths with eerie, processed vocal samples that echo the voices of long-dead physicists pondering the universe's final fate. With peaks of panic and dread balanced by awe and philosophical wonder, the track explores the Big Rip theory—where even atoms are torn asunder. It’s a sonic eulogy for existence itself, both terrifying and beautiful in its scale and potential end.

The End [ShadeFade]

Rogue planets wander the cosmos without stars, but could we still call them home? This episode dives into how humanity might transform these frozen giants into thriving outposts of civilization.

Go to https://hensonshaving.com/isaacarthur  and enter "Isaac Arthur " at checkout to get 100 free blades with your purchase.

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Credits:
Colonizing Rogue Planets
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Colonizing Rogue Planets

Matt and Jamie dive headfirst into the cosmic foam to explore the Bubble Universe, the mind-bending idea that our universe might be just one of countless “bubbles” in a vast multiverse. From the physics of cosmic inflation and the mysteries of the cosmic microwave background, to the philosophical head-scratchers of infinite realities, they mix hard science, playful analogies, and a touch of pop culture chaos.

#319 Bubble Universe

This lecture discusses key ideas from the ancient philosopher and statesman Marcus Tullius Cicero's work, On The Nature Of The Gods, which critically examines Epicurean, Stoic, and Skeptic perspectives on matters of theology and cosmology

Specifically it focuses upon  the presentation of Stoic cosmology and theology by Quintus Lucilius Balbus in book 2, in particular one of the arguments for the existence of the gods presented by Balbus, which we can call the argument from degrees of being. This type of argument doesn't fit neatly into the modern conventional classification of ontological, cosmological, and teleological arguments for the existence of the divine. It works by noting that there are different degrees (gradus) of being, going from bare being through plants, animals, humans, and other higher rational beings (gods), arguing that the top grade of being cannot be empty or non-existent.

To support my ongoing work, go to my Patreon site - www.patreon.com/sadler

If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM

You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler

Purchase Cicero's On The Nature Of Gods - amzn.to/3JITSZc

Cicero On The Nature Of The Gods book 2 - Argument From Degress Of Being - Sadler's Lectures

This lecture discusses key ideas from the ancient philosopher and statesman Marcus Tullius Cicero's work, On The Nature Of The Gods, which critically examines Epicurean, Stoic, and Skeptic perspectives on matters of theology and cosmology

Specifically it focuses upon the presentation of Stoic cosmology and theology by Quintus Lucilius Balbus in book 2, and in particular on the sequence of arguments that he provides, drawing from the works of earlier Stoic authors, intended to make the case for the world itself being God.

To support my ongoing work, go to my Patreon site - www.patreon.com/sadler

If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM

You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler

Purchase Cicero's On The Nature Of Gods - amzn.to/3JITSZc

Cicero On The Nature Of The Gods book 2 - Arguments That The World Is God - Sadler's Lectures

This lecture discusses key ideas from the ancient philosopher and statesman Marcus Tullius Cicero's work, On The Nature Of The Gods, which critically examines Epicurean, Stoic, and Skeptic perspectives on matters of theology and cosmology

Specifically it focuses upon the presentation of Stoic cosmology and theology by Quintus Lucilius Balbus in book 2, and in particular on his discussion of the perfection and beauty of the super-lunary realm, which includes the planets, the sun and moon, and the fixed stars. The ancients thought that these heavenly bodies exhibited perfect order and regularity in their motions, which are either the rotation of the sphere of the heavens, or the circular orbits of the planets, sun, and moon.

To support my ongoing work, go to my Patreon site - www.patreon.com/sadler

If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM

You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler

Purchase Cicero's On The Nature Of Gods - amzn.to/3JITSZc

Cicero On The Nature Of The Gods book 2 - Perfection Of Earth And Stars - Sadler's Lectures

In this powerful conversation, Jennifer Jenkins, director of the Southwest Center, speaks with Don Unger, recent PhD and environmental historian, about his groundbreaking research on uranium mining reclamation on the Navajo Nation. Unger discusses the ethics of storytelling, the balance between technical and spiritual approaches to healing the land, and his concept of Critical Reclamation Studies, a framework grounded in both Western policy and Navajo cosmology.
Together, they explore the lived realities of land restoration, long drives and “cabin conversations,” and the wisdom of community leaders like Mr. Melvin Yazzie and Mr. Ernest Greyeyes.
This episode opens a window into environmental justice, language, and the ongoing legacy of Cold War uranium mining in the Southwest.


Don Unger - Critical Reclamation: Uranium, Storytelling, and Healing on the Navajo Nation

This lecture discusses key ideas from the ancient philosopher and statesman Marcus Tullius Cicero's work, On The Nature Of The Gods, which critically examines Epicurean, Stoic, and Skeptic perspectives on matters of theology and cosmology

Specifically it focuses upon the presentation of Stoic cosmology and theology by Quintus Lucilius Balbus in book 2, and in particular on his discussion of the stability and coherence of the world itself and of the larger cosmos. These features are used by Balbus to argue for the existence of some intelligent, providentially ordering divine being. He also discusses a controversial Stoic doctrine, that of the universal conflagration, in which the matter of the world is gradually converted into aether or fire, and then the world is recreated by the divine being.

To support my ongoing work, go to my Patreon site - www.patreon.com/sadler

If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM

You can find over 3,500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler

Purchase Cicero's On The Nature Of Gods - amzn.to/3JITSZc

Cicero On The Nature Of The Gods book 2 - Stability Of World And Cosmos - Sadler's Lectures

The universe is beyond immense, and yet it might be nothing more than a tiny dot beside the rest of reality.

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Credits:
Exploring The Multiverse
Originally aired as Episode 462b; September 1, 2024 
Produced, Written & Narrated by: Isaac Arthur
Editors: Thomas  Owens
Select imagery/video supplied by Getty Images
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant", "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"
Taras Harkavyi, "Alpha and ..."

Exploring The Multiverse (Narration Only)

Exploring The Multiverse

A complete cosmology recorded and produced in an hour and a half. Take that Mozart, jk, your Early Symphonies my ghostly friend are the hippty skip snip snap sack

Eyes of Gold

Dark Soul Project Presents Cosmology 2025 Guest Mix Crisstiano (DIYNAMIC) 24 Octubre 2025

Explore the Wonders of the Universe with KALAM ASTRO 🚀

Join us on an incredible cosmic journey as we gaze at meteor showers, tackle the universe's deepest mysteries, and discover that ice giants might not be what we thought!

In This Episode:

☄️ Orionids Light Up UAE Skies - The spectacular Orionids meteor shower peaks on Tuesday, October 21st! Get your guide to the best viewing times and locations across the UAE to witness this celestial phenomenon.

🌌 The Ultimate Question: What's Beyond the Universe? - If the universe is expanding, what is it expanding INTO? And what did it expand FROM? We tackle one of cosmology's most mind-bending questions.

🪨 Spinning Asteroids Could Save Earth - New research reveals how understanding asteroid rotation in space could be the key to preventing a catastrophic impact with our planet. Learn about the science behind planetary defense.

🔵 Ice Giants Aren't So Icy After All - Groundbreaking research challenges everything we thought we knew about Uranus and Neptune. These distant worlds may have a completely different composition than scientists believed!

Whether you're a space enthusiast or just curious about the universe above us, this episode has something for everyone!
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Meteor Showers, Expanding Universe & Ice Giants Reconsidered

Alya Al Nuaimi invites you to embark on an intergalactic adventure through the cosmos with Kalam Astro. Stay up to date with the latest global and local astronomy news, including interviews with industry experts, and discover the secrets of the universe with mind-bending theories. Want some helpful tips on stargazing? Alya has got you covered.

Sydney Ideas is the University of Sydney's premier public lecture series program, bringing the world's leading thinkers and the latest research to the wider Sydney community.

Putting The Ace Back Into Space.
Host Matthew Russell's critically acclaimed fun and factual show about all things SPACE. 
New episode every week with a deep dive into the latest hot space topics.  
With regular Interviews and discussions with the worlds top space experts.
From how rockets fly to how blackholes work and everything in-between.

In a single moment your life can change!  “Moments with Marianne” is a transformative hour that covers an endless array of topics with the ‘best of the best.’ Her guest are leaders in their fields, ranging from inspirational authors, top industry leaders, business and spiritual entrepreneurs.  Each guest is gifted, and a true visionary!  A recognized leader in her own work, and while teaching others to develop, refocus, and grow; Marianne will bring the best guest, and sometimes a special surprise.  Don’t miss this – you never know just which ‘moment’ will change your life forever.

I'm that YouTube Philosophy Guy! Find more than 3,000 videos in my main channel.  Support my video and podcast work!  https://www.patreon.com/sadler or https://www.buymeacoffee.com/A4quYdWoM

Learn more about this podcast channel - https://youtu.be/qRvL0gqlyrw and https://gregorybsadler.substack.com/p/the-sadlers-lectures-podcast

Due to popular demand - and with the work underwritten by my Patreon supporters - I have been converting my videos into MP3 files listeners can listen to anywhere they want!

I have a second podcast, Mind & Desire, publishing original episodes on a variety of topics in philosophy, which you can find here - https://gregorybsadler.substack.com/podcast

The Journal of the Southwest Radio Hour brings the voices of researchers, educators, activists and community members working to better understand the region’s past and envision possible new futures.

New tracks tagged #Cosmology