Michelle Thaller

speaker

577 appearances 1 recordings 1 series first heard Jul 2026 last heard 21 Jul

Michelle Thaller’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.

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StarTalk with Neil deGrasse Tyson · Running Out of Matter with Michelle Thaller · 21 Jul 2026 podcast

Stars, for example, are an example of something that's a very low entropy.

Stars create very high energy radiation.

And, you know, over time, yes, I mean...

Every time you basically generate heat, I mean, if sunlight comes down, it's a high energy photon, hits the earth, warms things up, what's released, the heat is a lower energy type of light.

You've lost energy.

You've made from a high energy particle of light, now it's a lower energy type of light.

And so eventually the universe, all of the photons that were high energy are gonna hit things, get absorbed by things, make things warm, get re-emitted, and they're gonna lose energy over time.

And so, yes, the universe is running down.

And eventually we're going to get to a point where there's nothing left but very low energy photons.

You know, photons that are so low energy, they're probably not even detectable.

And then it's sort of anybody's guess as to, you know, does time and space exist anymore when there's really everything is just the same temperature.

A very, very low temperature is the only thing that the universe has.

It gets cooler and cooler.

Yeah, yeah.

Yeah.

Absolutely.

You've got a photon going through expanding space.

And think about, you know, you draw a squiggly line on a piece of elastic and pull the elastic.

And then that wavelength drops down.

You lose energy.

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