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)

129 | Solo: Democracy in America

129 | Solo: Democracy in America

The first full week of 2021 has been action-packed for those of us in the United States of America, for reasons you're probably aware of, including a riotous mob storming the US Capitol. The situation...

11 Tammi 20211h 43min

128 | Joseph Henrich on the Weirdness of the West

128 | Joseph Henrich on the Weirdness of the West

We all know stereotypes about people from different countries; but we also recognize that there really are broad cultural differences between people who grow up in different societies. This raises a c...

4 Tammi 20211h 27min

Holiday Message 2020 | The Screwy Universe

Holiday Message 2020 | The Screwy Universe

Welcome to the third annual Mindscape Holiday Message! Just a chance for me to be a little more chatty and informal than usual, although as it turned out this isn't all that different from a conventio...

21 Joulu 20201h 31min

127 | Erich Jarvis on Language, Birds, and People

127 | Erich Jarvis on Language, Birds, and People

Many characteristics go into making human beings special — brain size, opposable thumbs, etc. Surely one of the most important is language, and in particular the ability to learn new sounds and use th...

14 Joulu 20201h 15min

AMA | December 2020

AMA | December 2020

Getting into the swing of things here with monthly Ask Me Anything episodes. If you missed the explanation last month, there is a Patreon page for people who wish to support Mindscape with a small don...

9 Joulu 20203h 24min

126 | David Stasavage on the Origin and History of Democracy

126 | David Stasavage on the Origin and History of Democracy

Those of us living in democracies tend to take the idea for granted. We forget what an audacious, radical idea it is to put government power into the hands of literally all of the citizens of a countr...

7 Joulu 20201h 25min

125 | David Haig on the Evolution of Meaning from Darwin to Derrida

125 | David Haig on the Evolution of Meaning from Darwin to Derrida

Aristotle conceived of the world in terms of teleological "final causes"; Darwin, or so the story goes, erased purpose and meaning from the world, replacing them with a bloodless scientific algorithm....

30 Marras 20201h 15min

124 | Solo: How Time Travel Could and Should Work

124 | Solo: How Time Travel Could and Should Work

Time! It doesn't stop, psychological effects of being under lockdown notwithstanding. How we experience time depends on our situation, but time itself just marches forward. Unless, of course, it's pos...

23 Marras 20202h 41min

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