96 | Lina Necib on What and Where the Dark Matter Is

96 | Lina Necib on What and Where the Dark Matter Is

The past few centuries of scientific progress have displaced humanity from the center of it all: the Earth is not at the middle of the Solar System, the Sun is but one star in a large galaxy, there are trillions of galaxies, and so on. Now we know that we're not even made of the same stuff as most of the universe; for every amount of ordinary atoms and other known particles, there is five times as much dark matter, some kind of stuff we haven't identified in laboratory experiments. But we do know a great deal about the behavior of dark matter. I talk with Lina Necib about why we think there's dark matter, what it might be, and how it's distributed in the galaxy. The latter question has seen enormous recent progress, especially from high-precision measurements of the distribution of stars in the Milky Way.

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Lina Necib received her Ph.D. in physics from the Massachusetts Institute of Technology. She is currently a Sherman Fairchild Postdoctoral Scholar in Theoretical Physics at Caltech, and will be an Assistant Professor of Physics at MIT starting in the fall. Her research spans issues in particle physics and astrophysics, especially concerning the nature and distribution of dark matter, as well as techniques for detecting it and constraining its properties.


Jaksot(416)

180 | Camilla Pang on Instructions for Being Human

180 | Camilla Pang on Instructions for Being Human

Being a human is tricky. There are any number of unwritten rules and social cues that we have to learn as we go, but that we ultimately learn to take for granted. Camilla Pang, who was diagnosed with ...

17 Tammi 20221h 3min

179 | David Reich on Genetics and Ancient Humanity

179 | David Reich on Genetics and Ancient Humanity

Human beings like to divide themselves into groups, and then cooperate, socialize, and reproduce with members of their own group. But they're not very absolutist about it; groups tend to gradually (or...

10 Tammi 20221h 13min

178 | Jody Azzouni on What Is and Isn't Real

178 | Jody Azzouni on What Is and Isn't Real

Are numbers real? What does that even mean? You can't kick a number. But you can talk about numbers in useful ways, and we use numbers to talk about the real world. There's surely a kind of reality th...

3 Tammi 20221h 14min

Holiday Message 2021 | On Disciplines & Cocktails

Holiday Message 2021 | On Disciplines & Cocktails

As each December comes to a close, we wrap up another year of podcasts with the Mindscape Holiday Message. Nothing too profound, just some thoughts that wouldn't fit easily into a regular podcast. Thi...

20 Joulu 202159min

AMA | December 2021

AMA | December 2021

Welcome to the December 2021 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). I take the large number of qu...

15 Joulu 20213h 37min

177 | Monika Schleier-Smith on Cold Atoms and Emergent Spacetime

177 | Monika Schleier-Smith on Cold Atoms and Emergent Spacetime

When it comes to thinking about quantum mechanics, there are levels. One level is shut-up-and-calculate: find a wave function, square it to get a probability. One level is foundational: dig deeply int...

13 Joulu 20211h 10min

176 | Joshua Greene on Morality, Psychology, and Trolley Problems

176 | Joshua Greene on Morality, Psychology, and Trolley Problems

We all know you can't derive "ought" from "is." But it's equally clear that "is" — how the world actual works — is going to matter for "ought" — our moral choices in the world. And an important part o...

6 Joulu 20211h 26min

175 | William Ratcliff on Multicellularity, Physics, and Evolution

175 | William Ratcliff on Multicellularity, Physics, and Evolution

We've talked about the very origin of life, but certain transitions along its subsequent history were incredibly important. Perhaps none more so than the transition from unicellular to multicellular o...

29 Marras 20211h 26min

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