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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65 | Michael Mann on Why Our Climate Is Changing and How We Know

65 | Michael Mann on Why Our Climate Is Changing and How We Know

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23 Syys 20191h 17min

64 | Ramez Naam on Renewable Energy and an Optimistic Future

64 | Ramez Naam on Renewable Energy and an Optimistic Future

The Earth is heating up, and it's our fault. But human beings are not always complete idiots (occasional contrary evidence notwithstanding), and sometimes we can even be downright clever. Dare we imag...

16 Syys 20191h 16min

63 | Solo -- Finding Gravity Within Quantum Mechanics

63 | Solo -- Finding Gravity Within Quantum Mechanics

I suspect most loyal Mindscape listeners have been exposed to the fact that I've written a new book, Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime. As I release this episode o...

9 Syys 20191h 50min

62 | Michele Gelfand on Tight and Loose Societies and People

62 | Michele Gelfand on Tight and Loose Societies and People

Physicists study systems that are sufficiently simple that it's possible to find deep unifying principles applicable to all situations. In psychology or sociology that's a lot harder. But as I say at ...

2 Syys 20191h 12min

61 | Quassim Cassam on Intellectual Vices and What to Do About Them

61 | Quassim Cassam on Intellectual Vices and What to Do About Them

All of us have been wrong about things from time to time. But sometimes it was a simple, forgivable mistake, while other times we really should have been correct. Properties that systematically preven...

26 Elo 20191h 10min

60 | Lynne Kelly on Memory Palaces, Ancient and Modern

60 | Lynne Kelly on Memory Palaces, Ancient and Modern

Memory takes different forms. Memories can be encoded in the strength of neural connections in our brains, but there's a sense in which photographs and written records are memories as well. What did p...

19 Elo 20191h 15min

59 | Adam Becker on the Curious History of Quantum Mechanics

59 | Adam Becker on the Curious History of Quantum Mechanics

There are many mysteries surrounding quantum mechanics. To me, the biggest mysteries are why physicists haven't yet agreed on a complete understanding of the theory, and even more why they mostly seem...

12 Elo 20191h 40min

58 | Seth MacFarlane on Using Science Fiction to Explore Humanity

58 | Seth MacFarlane on Using Science Fiction to Explore Humanity

Fiction shines a light on the human condition by putting people into imaginary situations and envisioning what might happen. Science fiction expands this technique by considering situations in the fut...

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