This research uses weak gravitational lensing to map the invisible distribution of dark matter within galaxy clusters. By measuring tiny distortions in the shapes of distant galaxies, it reconstructs total mass distributions, helping scientists understand dark matter, galaxy cluster evolution, and the large-scale structure and history of the universe.

This research investigates the universe’s “missing” ordinary matter using Fast Radio Bursts (FRBs) as cosmic probes. By measuring how FRB signals are delayed while traveling through space, the study reveals that far more matter exists between galaxies than previously estimated, accounting for the long-standing missing baryon problem.