Black & White Holes + Galactic Power Plants

Black & White Holes + Galactic Power Plants

Author: Francis Tapon May 14, 2026 Duration: 35:31

Dr. Sten Odenwald discusses The Essential Book of Black Holes. See my review of the new book below.

But first, watch this video in which I interview Dr. Odenwald about his book!

Timeline

00:00 Intro

2:15 Math & Black Holes

5:00 Holographic universe

5:50 Hypernova

9:05 White holes

14:45 Is our universe in a black hole?

17:50 Gravity is NOT a force

25:45 Galactic Power Plant

Book Review of The Essential Book of Black Holes

At 159 pages and 12 chapters, The Essential Book of Black Holes is a literary black hole: deceptively small, absurdly dense, and liable to warp your sense of time until “I’ll just read a few pages” becomes “where did my evening go?”

If you’ve ever wanted a NASA astronomer to sit you down and explain black holes without making your brain perform quantum tunneling, this is it.

Sten Odenwald walks you through gravity, quantum mechanics, thermodynamics, and even the holographic principle in bite-sized chunks that hit harder than a collapsing star. The language is accessible, which is impressive given the subject matter and slightly suspicious given how much you suddenly think you understand.

The format helps with the illusion of safety: 12 short chapters, full color, pretty illustrations, and a neat foil-stamped hardback in the print edition—like a friendly brochure for the end of spacetime. Each chapter is compact enough to read on a commute, but information-dense enough that your neurons may demand hazard pay. It’s marketed as a “pocket volume,” which is appropriate, because it will happily consume every spare pocket of free time you have.

As an introduction, it’s almost suspiciously good: clear explanations, focused scope, and just enough cosmological mind-bending to make you question reality without needing a support group. If you’re black-hole-curious and want a fun, manageable plunge into the abyss, this is a stellar gateway drug to modern astrophysics—compact, colourful, and with a gravitational pull that far exceeds its modest 159 pages.

VERDICT: 9 out of 10 stars!

About Sten Odenwald

Sten Odenwald is an American astronomer, author, NASA scientist-educator, and science communicator.

He earned his Ph.D. in astronomy from Harvard University in 1982, focusing on accretion disks around supermassive black holes and the far-infrared properties of the Milky Way’s Galactic Center.

Career

Odenwald worked as a postdoctoral researcher at the Naval Research Laboratory’s Space Sciences Division from 1982 to 1990, contributing to the NASA Cosmic Background Explorer and Diffuse Infrared Background Experiment. Later roles included positions at Sachs Freeman Associates, BDM International, Applied Research Corporation, and Raytheon, with a focus on education outreach for missions like IMAGE and COBE. Since 2005, his research has centered on space weather impacts, such as solar storms on satellites, and he retired from NASA Goddard Spaceflight Center while serving as Director of STEM Resource Development and part of the Heliophysics Education Consortium until 2025.

Publications

He has authored books like The Astronomy Cafe, The 23rd Cycle, Patterns in the Void, and Back to the Astronomy Cafe, and published over 100 papers, including recent ones on geomagnetic storms, time, and DIY magnetometers.

Odenwald runs The Astronomy Cafe, an online resource, and has appeared on media outlets such as Naked Science to promote citizen science and heliophysics education.

What do you think?

Put your thoughts in the comments.

Connect

Send me an anonymous voicemail at SpeakPipe.com/FTapon

You can post comments, ask questions, and sign up for my Substack newsletter.

If you like this podcast, subscribe and share!

On social media, my username is always FTapon. Connect with me on:

* YouTube

* Facebook

* Instagram

* X

* TikTok

* LinkedIn

Sponsors

1. My Patrons sponsored this show! Claim your monthly reward by becoming a patron for as little as $2/month at https://Patreon.com/FTapon

2. For the best travel credit card, get one of the Chase Sapphire cards and get 75-100k bonus miles!

3. Get $5 when you sign up for Roamless, my favorite global eSIM with its unlimited hotspot & data that never expires! Use code LR32K

4. Or get 5% off when you sign up with Saily, another global eSIM with a built-in VPN & ad blocker.

5. Get 25% off when you sign up for Trusted Housesitters, a site that helps you find sitters or homes to sit in.

6. Start your podcast with my company, Podbean, and get one month free!

7. In the United States, I recommend trading cryptocurrency with Kraken.

8. Outside the USA, trade crypto with Binance and get 5% off your trading fees!

9. For backpacking gear, buy from Gossamer Gear

* Get nomadic travel insurance from SafetyWing!



Get full access to Francis Tapon at ftapon.substack.com/subscribe

There's a certain kind of travel that changes you, not just your location. It’s the slow, immersive kind where the journey itself becomes the teacher. In WanderLearn: Travel to Transform Your Mind & Life, Francis Tapon acts as your guide into this world, exploring how leaving familiar ground can fundamentally reshape your perspective. This isn't about quick tips or itineraries; it's about the deeper conversations that happen at the crossroads of culture, society, and personal growth. Each episode delves into how we engage with places and people, often weaving in discussions about the role of modern technology in both enabling and complicating these profound experiences. You'll hear stories and insights that challenge the conventional tourist mindset, pushing toward a more thoughtful, engaged way of moving through the world. Francis draws from a wealth of experience to discuss concepts like vagabonding and deep travel, making the case that the greatest souvenirs aren't trinkets, but transformed thoughts. Tuning into this podcast feels like sitting down with a well-traveled friend who understands that the real destination is often a shift within yourself. It’s for anyone who believes that travel, at its best, is a powerful catalyst for learning and living differently.
Author: Language: English Episodes: 50

WanderLearn: Travel to Transform Your Mind & Life
Podcast Episodes
Would Jared Diamond Call Bin Laden A Great Man? [not-audio_url] [/not-audio_url]

Duration: 13:22
In this video, I review Jared Diamond’s latest book, Profits, Prophets, Coaches, and Kings: (When) Do Leaders Matter? I also reflect on the 25th anniversary of September 11, 2001.Watch the video!In this WanderLearn Show,…
73-Year-Old ALDHA-West Triple Crowner Shares Wisdom [not-audio_url] [/not-audio_url]

Duration: 11:44
Scott Williams and I cover the following topics in 9 minutes:00:00 Why Go to ALDHA West?02:00 Aging Advice05:40 Sweden's Green Ribbon TrailWatch on YouTube!What do you think?Put your thoughts in the comments.ConnectSend…
How Artificial Intelligence Will Transform Travel [not-audio_url] [/not-audio_url]

Duration: 10:11
Use the discount code FTAPON when you buy your ticket to the Extraordinary Travel Festival.Watch on YouTube!Timeline00:00 ETF306:00 How do ETF members travel?11:00 Ric’s road to 19313:00 Saving the best for last16:45 Top…
Extraordinary Travel Festival 3 with Ric Gazarian [not-audio_url] [/not-audio_url]

Duration: 20:30
Use the discount code FTAPON when you buy your ticket to the Extraordinary Travel Festival.Watch the interview on YouTube!The ETF is probably the best travel conference for adventurous travelers! I’ve spoken at two of th…
URGENT! Coldcard MK3 Vulnerability! Move Your BTC Now! [not-audio_url] [/not-audio_url]

Duration: 7:01
3-Step EMERGENCY for Bitcoin Coldcard users! 1) Move your funds from your Coldcard, especially the MK3 model.2) Update your Coldcard firmware.3) Generate a new seed phraseWatch the video of this podcastGet the new Coldca…
The Best Long-Distance Trail: Triple Crowner Scott Williams Answers [not-audio_url] [/not-audio_url]

Duration: 6:07
What’s best: the AT, PCT, or CDT? I ask a 73-year-old hiker who has done all 3!Be sure to watch last week’s episode featuring Scott!Connect with Scott on FB!Watch this episodeTimeline00:00 Arizona Trail1:50 Favorite Trip…
Does New Zealand's Te Araroa Trail suck? Scott Williams Answers [not-audio_url] [/not-audio_url]

Duration: 7:45
I talk with renowned long-distance hiker & Triple Crowner, Scott Williams, about his experience on New Zealand's Te Araroa Trail.This is part 1 of a 3-part interview series featuring Scott.Watch this interview!Scott's bu…
AMA with the Top Serb Nomad, Nenad Stojanovic [not-audio_url] [/not-audio_url]

Duration: 11:58
Most of the questions focus on the Balkans, which is ironic since Nenad spends little time there!Follow Nenad on FB & IG at whereisNenad.Watch this episode!Timeline00:00 What's going on in the Balkans?01:40 Book recommen…
Extreme Nomad Reveals Tips & Plans [not-audio_url] [/not-audio_url]

Duration: 10:12
Nenad Stojanovic is 42. He's been traveling the world nonstop for nearly 20 years.You can follow him on WhereisNenad on FB & IG.Watch this episode now!Watch previous episodes to learn more about this remarkable traveler!…
Tales of a Couchsurfing & Hitchhiking Expert [not-audio_url] [/not-audio_url]

Duration: 12:52
Couchsurfing isn’t simply a way to save money when traveling, but it’s mostly a way to connect with locals, to understand local culture, and see what you’ll never see in a hotel. Nenad seldom stays in a hotel. Watch this…