Are the Fundamental Constants Changing?

Our Universe is governed by certain fundamental constants, such as the speed of light and the fine structure constant, but recent findings suggest that these constants might not be as stable as we assumed. And be sure to signup for your free trial of The Great Courses Plus at

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Previous Episode:
The Future of Space Telescopes

Webb et al. 1998, A Search for Time Variation of the Fine Structure Constant

Webb et al. 2011, A Search for Time Variation of the Fine Structure Constant

Martins & Pinho 2016, Stability of Fundamental Couplings: a Global Analysis

The laws of physics are the same everywhere in the universe. At least we astrophysicists hope so. After all, it’s hard to unravel the complexities of distant parts of the universe if we don’t know the basic rules. But what if this is wrong? There is a hint of evidence that the fundamental constants that govern our universe may evolve over time, and even from one location to another.

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