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)

187 | Andrew Leigh on the Politics of Looming Disasters

187 | Andrew Leigh on the Politics of Looming Disasters

We're pretty well-calibrated when it comes to dealing with common, everyday-level setbacks. But our brains aren't naturally equipped for dealing with unlikely but world-catastrophic disasters. Yet suc...

7 Maalis 20221h 20min

186 | Sherry Turkle on How Technology Affects Our Humanity

186 | Sherry Turkle on How Technology Affects Our Humanity

Advances in technology have gradually been extending the human self beyond its biological extent, as we augment who we are with a variety of interconnected devices. There are obvious benefits to this ...

28 Helmi 20221h 11min

185 | Arvid Ågren on the Gene's-Eye View of Evolution

185 | Arvid Ågren on the Gene's-Eye View of Evolution

One of the brilliant achievements of Darwin's theory of natural selection was to help explain apparently "purposeful" or "designed" aspects of biology in a purely mechanistic theory of unguided evolut...

21 Helmi 20221h 25min

184 | Gary Marcus on Artificial Intelligence and Common Sense

184 | Gary Marcus on Artificial Intelligence and Common Sense

Artificial intelligence is everywhere around us. Deep-learning algorithms are used to classify images, suggest songs to us, and even to drive cars. But the quest to build truly "human" artificial inte...

14 Helmi 20221h 24min

AMA | February 2022

AMA | February 2022

Welcome to the February 2022 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...

10 Helmi 20224h 15min

183 | Michael Dine on Supersymmetry, Anthropics, and the Future of Particle Physics

183 | Michael Dine on Supersymmetry, Anthropics, and the Future of Particle Physics

Modern particle physics is a victim of its own success. We have extremely good theories — so good that it's hard to know exactly how to move beyond them, since they agree with all the experiments. Yet...

7 Helmi 20221h 39min

182 | Sally Haslanger on Social Construction and Critical Theory

182 | Sally Haslanger on Social Construction and Critical Theory

Reality is just out there — but how we perceive reality and talk about it depends on choices we human beings make. We decide (consciously or not) to conceptualize the world in certain ways, whether it...

31 Tammi 20221h 37min

181 | Peter Dodds on Quantifying the Shape of Stories

181 | Peter Dodds on Quantifying the Shape of Stories

A good story takes you on an emotional journey, with ups and downs along the way. Thanks to science, we can quantify that. Peter Dodds works on understanding the structure of stories and other strings...

24 Tammi 20221h 16min

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