Anomalies in Physical Cosmology

Abstract

The $\Lambda$CDM cosmology passes demanding tests that establish it as a good approximation to reality. The theory is incomplete, of course, and open issues are being examined in active research programs. I offer a review of less widely discussed anomalies that might also point to hints to a still better cosmological theory if more closely examined.

arXiv commentA much revised and expanded version of lectures presented in 2021 and earlier and transcribed as arXiv:2106.02672

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