Tiny diamonds in star dust

To understand the evolution of the universe, astronomers study the Cosmic Microwave Background (CMB). It is a remnant, an echo of the big bang, and provides answers to how the basic structures of our universe formed. If this radiation is measured, however, it is brighter than predicted. This is because there are also other sources of microwave radiation in the universe.

The portion that exceeds the expected quantity is called AME (Anomalous Microwave Emission). For a long time it was believed...