Offers a collection of articles highlighting some of the most recent developments in mathematics. Articles include "Prime Clusters and Gaps: Out-Experting the Experts", and "The Kadison-Singer Problem: A Fine Balance"; "Climate Past, Present, and Future" and "The Truth Shall Set Your Fee".

This new volume of What's Happening in the Mathematical Sciences features a rich selection of articles about recent topics in pure and applied mathematics. ``Expanding Horizons'' and ``Needles in an Infinite Haystack'' explain new developments in the theory of expander graphs and in number theory (asymptotic Fermat's last theorem), respectively. ``The SetR Game Has Met Its Match'' presents a solution of the so-called Cap Set Conjecture, a statement about arithmetic progressions in finite vector spaces, which resulted from the mathematical analysis of the popular game ``Set''. ``The...