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)

255 | Michael Muthukrishna on Developing a Theory of Everyone

255 | Michael Muthukrishna on Developing a Theory of Everyone

A "Theory of Everything" is physicists' somewhat tongue-in-cheek phrase for a hypothetical model of all the fundamental physical interactions. Of course, even if we had such a theory, it would tell us...

30 Loka 20231h 17min

254 | William Egginton on Kant, Heisenberg, and Borges

254 | William Egginton on Kant, Heisenberg, and Borges

It can be tempting, when first introduced to a deep concept of physics like Heisenberg's uncertainty principle, to draw grand philosophical conclusions about the impossibility of knowing anything prec...

23 Loka 20231h 6min

253 | David Deutsch on Science, Complexity, and Explanation

253 | David Deutsch on Science, Complexity, and Explanation

David Deutsch is one of the most creative scientific thinkers working today, who has as a goal to understand and explain the natural world as best we can. He was a pioneer in quantum computing, and ha...

16 Loka 20231h 42min

AMA | October 2023

AMA | October 2023

Welcome to the October 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Pat...

9 Loka 20232h 58min

252 | Hannah Ritchie on Keeping Hope for the Planet Alive

252 | Hannah Ritchie on Keeping Hope for the Planet Alive

Our planet and its environment are in bad shape, in all sorts of ways. Those of us who want to improve the situation face a dilemma. On the one hand, we have to be forceful and clear-headed about how ...

2 Loka 20231h 15min

251 | Rosemary Braun on Uncovering Patterns in Biological Complexity

251 | Rosemary Braun on Uncovering Patterns in Biological Complexity

Biological organisms are paradigmatic emergent systems. That atoms of which they are made mindlessly obey the local laws of physics; even cells and organs do their individual jobs without explicitly u...

25 Syys 20231h 11min

250 | Brendan Nyhan on Navigating the Information Ecosystem

250 | Brendan Nyhan on Navigating the Information Ecosystem

The modern world inundates us with both information and misinformation. What are the forces that conspire to make misinformation so prevalent? Can we combat the flow of misinformation, perhaps by lega...

18 Syys 202357min

249 | Peter Godfrey-Smith on Sentience and Octopus Minds

249 | Peter Godfrey-Smith on Sentience and Octopus Minds

The study of cognition and sentience would be greatly abetted by the discovery of intelligent alien beings, who presumably developed independently of life here on Earth. But we do have more than one d...

11 Syys 20231h 28min

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