meta_pixel
Tapesearch Logo
Log in
Astronomy Cast

Ep. 776: The Matter - Antimatter Dichotomy

Astronomy Cast

Astronomy Cast

Science, Natural Sciences, Astronomy

4.83.4K Ratings

🗓️ 29 December 2025

⏱️ 30 minutes

🧾️ Download transcript

Summary

Astronomy Cast Ep. 776: The Matter - Antimatter Dichotomy By Fraser Cain & Dr. Pamela Gay Streamed live on Dec 22, 2025. Shortly after the big bang there were almost exactly the same amounts of matter and antimatter in the Universe, but there was just enough of a difference that we live in a matter-dominated Universe. But it didn't have to be that way! Explaining this mystery has been one of the great mysteries in astronomy, and today we'll see if there's been any progress! Why is the Universe the way it is? Specifically, why is it made mostly of matter? This is the question we'll look at today! This show is supported through people like you on Patreon.com/AstronomyCast In this episode, we'd like to thank: Andrew Poelstra, BogieNet, Brian Cagle, Burry Gowen, David, David Rossetter, Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael Purcell, Sergey Manouilov, Siggi Kemmler, Sérgio Sancevero

Transcript

Click on a timestamp to play from that location

0:00.0

I'm

0:02.0

Oh Thank you. I'm Astronomycast, Episode 776, The Matter Antimatter Dicotomy. Welcome to Astronomycast for Weekly Facts-based Journey Through the Cosmos, where we help you understand not only what we know, but how we know what we know. I'm Fraser Kane. I'm the publisher of the universe today. With me, as always, is Dr. Pamela Gay, a senior scientist for the Planetary Science Institute and the Director of Cosmo. Hello, Pamela. How are you doing?

1:11.6

I am doing well enough.

1:14.4

Enough. Well enough. Yes.

1:17.3

So I want to talk about something that is very important, and I think a lot of people are very

1:24.3

ashamed to admit it to us, and I think this is a safe space. And that is,

1:31.2

it's okay for you to fall asleep to our delta toadone. It's true. It's true. We are aware that you

1:38.2

do this. Yes. And honestly, it's a compliment to know that you're taking us into such a

1:43.4

vulnerable spot

1:44.3

where we could potentially give you nightmares.

1:46.3

And apparently we don't.

1:48.0

And that somehow the back and forth between the two of us somehow does not wake you up suddenly

1:56.4

when I get into some kind of excited rant, and that's good.

2:01.0

And, you know, this is one of those great cycle of life kind of things where I think

2:05.0

we use other people's audio in video to put ourselves to sleep.

2:11.7

And I think this is just one of the great discoveries of the modern internet age,

2:16.2

is that you can play audio, it puts you to sleep,

2:18.3

how wonderful is that? And I think, you know, what I consider, when you've got all of these

2:22.8

modern options right now, when you can go onto YouTube and you can let an AI read you some kind

2:28.7

of sleepy time, AI slop. Do not do it. Or you can pick the genuine conversations between two human beings who've been doing this for 18 years.

2:39.7

We respect and appreciate the fact that you choose to spend your time going to sleep with us.

2:45.6

I have one correction, however.

...

Transcript will be available on the free plan in 12 days. Upgrade to see the full transcript now.

Disclaimer: The podcast and artwork embedded on this page are from Astronomy Cast, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Astronomy Cast and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.

Copyright © Tapesearch 2026.