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)

314 | Karen Lloyd on the Deep Underground Biosphere

314 | Karen Lloyd on the Deep Underground Biosphere

There are living creatures dwelling deep below the surface of the Earth, as deep as we are able to drill. These hearty microorganisms are related to more familiar life forms on land and under water, b...

12 Mai 20251h 9min

313 | Eric Topol on the Changing Face of Medicine and Aging

313 | Eric Topol on the Changing Face of Medicine and Aging

Medical science is advancing at an astonishing rate. Today we talk with leading expert Eric Topol about two aspects of this story. First, the use of artificial intelligence in medicine, especially in ...

5 Mai 20251h 12min

AMA | May 2025

AMA | May 2025

Welcome to the May 2025 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 Patreon...

28 Apr 20253h 38min

312 | Thomas Levenson on the Mutual History of Humans and Germs

312 | Thomas Levenson on the Mutual History of Humans and Germs

The germ theory of disease is a crowning achievement of science, up there with modern physics, continental drift, and evolution via natural selection. (Even if there will always be cranky skeptics.) B...

21 Apr 20251h 31min

311 | Annaka Harris on Whether Consciousness is Fundamental

311 | Annaka Harris on Whether Consciousness is Fundamental

Questions about consciousness range from the precise and empirical -- what neurons fire when I have some particular experience -- to the deeply profound -- does consciousness emerge from matter, or do...

14 Apr 20251h 10min

AMA | April 2025

AMA | April 2025

Welcome to the April 2025 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 Patre...

7 Apr 20253h 30min

310 | Marc Kamionkowski on Dark Energy and Cosmic Anomalies

310 | Marc Kamionkowski on Dark Energy and Cosmic Anomalies

Cosmologists were, let us be honest, pretty stunned in 1998 when observations revealed that the universe is accelerating. There was an obvious plausible explanation, the cosmological constant proposed...

31 Mar 20251h 26min

309 | Christof Koch on Consciousness and Integrated Information

309 | Christof Koch on Consciousness and Integrated Information

Consciousness is easier to possess than to define. One thing we can do is to look into the brain and see what lights up when conscious awareness is taking place. A complete understanding of this would...

24 Mar 20251h 20min

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