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.


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108 | Carl Bergstrom on Information, Disinformation, and Bullshit

108 | Carl Bergstrom on Information, Disinformation, and Bullshit

We are living, in case you haven't noticed, in a world full of bullshit. It's hard to say whether the amount is truly increasing, but it seems that everywhere you look someone is trying to convince yo...

3 Aug 20201h 24min

107 | Russ Shafer-Landau on the Reality of Morality

107 | Russ Shafer-Landau on the Reality of Morality

Despite occasional and important disagreements, most people are in rough agreement about what it means to be moral, to do the right thing. There's much less agreement about why we should be moral, or ...

27 Juli 20201h 30min

106 | Stuart Bartlett on What "Life" Means

106 | Stuart Bartlett on What "Life" Means

Someday, most likely, we will encounter life that is not as we know it. We might find it elsewhere in the universe, we might find it right here on Earth, or we might make it ourselves in a lab. Will w...

20 Juli 20201h 25min

105 | Ann-Sophie Barwich on the Science and Philosophy of Smell

105 | Ann-Sophie Barwich on the Science and Philosophy of Smell

We gather empirical evidence about the nature of the world through our senses, and use that evidence to construct an image of the world in our minds. But not all senses are created equal; in practice,...

13 Juli 20201h 17min

104 | David Rosen and Scott Miles on the Neuroscience of Music and Creativity

104 | David Rosen and Scott Miles on the Neuroscience of Music and Creativity

Creativity is one of those things that we all admire but struggle to define or make concrete. Music provides a useful laboratory in which to examine what creativity is all about — how do people become...

6 Juli 20201h 26min

103 | J. Kenji López-Alt on Cooking As and With Science

103 | J. Kenji López-Alt on Cooking As and With Science

Cooking is art, but it's also very much science — mostly chemistry, but with important contributions from physics and biology. (Almost like a well-balanced recipe…) And I can't think of anyone better ...

29 Juni 20201h 15min

102 | Maria Konnikova on Poker, Psychology, and Reason

102 | Maria Konnikova on Poker, Psychology, and Reason

The best chess and Go players in the world aren't human beings any more; they're artificially-intelligent computer programs. But the best poker players are still humans. Poker is a laboratory for unde...

22 Juni 20201h 20min

101 | David Baltimore on the Mysteries of Viruses

101 | David Baltimore on the Mysteries of Viruses

I recently saw an estimate that if you took all the novel coronaviruses in the world (the actual viruses, not patients), you could fit them into a bucket no more than a couple of liters in volume. A h...

15 Juni 20201h 14min

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