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(416)

AMA | July 2021

AMA | July 2021

Welcome to the July 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 questi...

9 Jul 20213h 49min

154 | Reza Aslan on Religion, Metaphor, and Meaning

154 | Reza Aslan on Religion, Metaphor, and Meaning

Religion is an important part of the lives of billions of people around the world, but what religious belief actually amounts to can vary considerably from person to person. Some believe in an anthrop...

5 Jul 20211h 25min

153 | John Preskill on Quantum Computers and What They're Good For

153 | John Preskill on Quantum Computers and What They're Good For

Depending on who you listen to, quantum computers are either the biggest technological change coming down the road or just another overhyped bubble. Today we're talking with a good person to listen to...

28 Jun 20211h 32min

152 | Charis Kubrin on Criminology, Incarceration, and Hip-Hop

152 | Charis Kubrin on Criminology, Incarceration, and Hip-Hop

It's all well and good to talk abstractly about morality and justice, but at some point you have to sit down and figure out what to do about people who break the rules. In our modern legal system, mos...

21 Jun 20211h 19min

151 | Jordan Ellenberg on the Mathematics of Political Boundaries

151 | Jordan Ellenberg on the Mathematics of Political Boundaries

Any system in which politicians represent geographical districts with boundaries chosen by the politicians themselves is vulnerable to gerrymandering: carving up districts to increase the amount of se...

14 Jun 20211h 23min

AMA | June 2021

AMA | June 2021

Welcome to the June 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 questi...

10 Jun 20213h 18min

150 | Simon DeDeo on How Explanations Work and Why They Sometimes Fail

150 | Simon DeDeo on How Explanations Work and Why They Sometimes Fail

You observe a phenomenon, and come up with an explanation for it. That's true for scientists, but also for literally every person. (Why won't my car start? I bet it's out of gas.) But there are litera...

7 Jun 20211h 32min

149 | Lee Smolin on Time, Philosophy, and the Nature of Reality

149 | Lee Smolin on Time, Philosophy, and the Nature of Reality

The challenge to a theoretical physicist pushing beyond our best current theories is that there are too many ways to go. What parts of the existing paradigm do you keep, which do you discard, and why ...

31 Mai 20211h 29min

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