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Anomalies in the cosmic microwave background (CMB) refer to features thathave been observed, mostly at large angular scales, and which show some tensionwith the statistical predictions of the standard $\Lambda$CDM model. In thiswork, we focus our attention on power suppression, dipolar modulation, apreference for odd parity, and the tension in the lensing parameter $A_L$.Though the statistical significance of each individual anomaly is inconclusive,collectively they are significant, and could indicate new physics beyond the$\Lambda$CDM model. In this article, we present a brief, but pedagogicalintroduction to CMB anomalies and propose a common origin in the context ofloop quantum cosmology.

Anomalies in the Cosmic Microwave Background and their Non-Gaussian Origin in Loop Quantum Cosmology