Daniel and Kelly’s Extraordinary Universe

Daniel and Kelly talk to Ethan Siegal about whether we should expect physics to be explained by a single unified theory.

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Daniel and Kelly talk about how aliens might experience the Universe and how it might shape their science, a topic from Daniel's new book "Do Aliens Speak Physics?"

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Daniel and Kelly get answers to listener questions about why we age from Dr. Venki Ramakrishnan, author of "Why We Die: The New Science of Aging and the Quest for Immortality".

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Daniel and Kelly talk about how gravity, magnetism and relativity work together to create one of the most brilliant spectacles in the Universe.

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Daniel and Kelly talk to Phil Metzger about the engineering challenges of building self-replication space probes.

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Daniel and Kelly answer questions about gravtational slingshots, megafauna and microscopic black holes!

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Daniel and Kelly talk to Phil Halper about the many mysteries of the origins of the Universe.

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Daniel and Kelly dig into the mysteries of magnetism, explaining how magnets work and what they reveal about the Universe.

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Daniel and Kelly talk to Sean Carroll about where some of the basic assumptions we make about the Universe come from, and whether we need them.

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Daniel and Kelly talk about the science behind the "zombie ants".

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Daniel and Kelly shine a light on the inner workings of one of the crucial parts of the scientific process: peer review. How does it work? Who are these peers? Can peer-reviewed papers be wrong, and does that mean that all of science is questionable?

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Daniel and Kelly explore how scientific discoveries are made, digging into fun stories, the history of science with Prof. Lydia Patton and the lessons of Nobel Prize winners with Prof. Brian Keating.

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Daniel and Kelly discuss the future of computing and talk to Adam Becker about what it all means.

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Daniel and Kelly grapple with the implications of arbitrary numbers in our theory, whether they could have had different values, and what it all means.

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Daniel and Kelly chat with Katrine Whiteson about how we can enlist viruses to kill infectious bacteria.

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Daniel and Kelly answer listener questions about screwworm at the southern border, life without the Moon, and the status of synthetic blood.

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Daniel and Kelly chat with Dr. Gina Poe about sleep and dreams - including whether mushrooms sleep, what Daniel's dog is doing in the middle of the night, and what rats dream about.

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Daniel and Kelly talk about recent mathematical innovations that suggest a third category of particles beyond matter and forces.

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Over 100,000 people are on the organ transplant waitlist in the United States. Unfortunately, many of these people will not get an organ in time. Daniel and Kelly talk about the science and ethics behind using transgenic pigs to fill the shortfall.

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