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.


Episoder(415)

6 | Liv Boeree on Poker, Aliens, and Thinking in Probabilities

6 | Liv Boeree on Poker, Aliens, and Thinking in Probabilities

Poker, like life, is a game of incomplete information. To do well in such a game, we have to think in terms of probabilities, unpredictable strategies, and Bayesian inference. These are ideas that pla...

23 Jul 20181h 10min

5 | Geoffrey West on Networks, Scaling, and the Pace of Life

5 | Geoffrey West on Networks, Scaling, and the Pace of Life

If you scale up an animal to twice its height, keeping everything else proportionate, its volume and weight become eight times as much. Such a scaling relation was used by J.B.S. Haldane in his famous...

16 Jul 20181h 23min

4 |  Anthony Pinn on Humanism, Theology, and the Black Community

4 | Anthony Pinn on Humanism, Theology, and the Black Community

According to atheism, God does not exist. But religions have traditionally done much more than simply proclaim God's existence: they have provided communities, promoted the arts, handed down moral gui...

12 Jul 20181h

3 | Alice Dreger on Sexuality, Truth, and Justice

3 | Alice Dreger on Sexuality, Truth, and Justice

The human mind loves nothing more than to build mental boxes -- categories -- and put things into them, then refuse to accept it when something doesn't fit. Nowhere is this more clear than in the idea...

11 Jul 20181h 20min

2 | Carlo Rovelli on Quantum Mechanics, Spacetime, and Reality

2 | Carlo Rovelli on Quantum Mechanics, Spacetime, and Reality

Quantum mechanics and general relativity are the two great triumphs of twentieth-century theoretical physics. Unfortunately, they don't play well together -- despite years of effort, we currently lack...

10 Jul 20181h 12min

1 | Carol Tavris on Mistakes, Justification, and Cognitive Dissonance

1 | Carol Tavris on Mistakes, Justification, and Cognitive Dissonance

For the first full episode of Mindscape, it's an honor to welcome social psychologist Carol Tavris. Her book with co-author Eliot Aronson, Mistakes Were Made (But Not By Me), explores the effect that ...

4 Jul 20181h 11min

Welcome to the Mindscape Podcast!

Welcome to the Mindscape Podcast!

I've decided to officially take the plunge into the world of podcasting. The new show will be called Mindscape, and will mostly consist of me talking to smart people about interesting ideas. (Occasion...

1 Jul 201816min

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