359 | Solo: Theories of Dark Energy

2026-06-29 · 116 min · episode 359 · 7 entities

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mentioned Science concept

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mentioned Physics concept

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mentioned Solo: Theories of Dark Energy concept

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359 | Solo: Theories of Dark Energy
discusses Science concept

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evidence rules-v4
Feed category: Science
discusses Physics concept

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evidence rules-v4
Feed category: Physics

persons 2

mentioned Sean Carroll person

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evidence rules-v4
Feed author/publisher: Sean Carroll
hosted by Sean Carroll person

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evidence rules-v4
Feed author/publisher: Sean Carroll

Episode description as stored

The cosmological constant, as discussed last episode, provides a perfectly good (thus far) explanation for why we observe the universe to be accelerating. But it might not be the right explanation, and demonstrating that would be yet another foundational discovery. In this episode I discuss what is required to invent a plausible theory of dynamical dark energy , This includes considerations from particle physics, possible experimental tests, and the option that we should modify gravity rather than adding a new source of energy to the equations. Blog post with transcript: https://www.preposterousuniverse.com/podcast/2026/06/29/359-solo-theories-of-dark-energy/ Support Mindscape on Patreon .