Naoki Yoshida

Dark matter is an ancient melody the cosmos has been humming for billions of years, yet we only hear its gravitational bass line. But among hypothetical candidates, one is special — fuzzy dark matter made of ultralight bosons.

Ever since Fritz Zwicky noticed that galaxy clusters were moving too fast, and Vera Rubin measured the rotation of spiral arms, dark matter has remained cosmology's greatest mystery.

The cosmos resembles silk fabric with threads of the dark web showing through. We only glimpse tiny swatches of the real tapestry — through telescopes, in actual galaxy catalogs. To separate the fundamental signal from astrophysical noise in the cosmic pattern, statistical analysis demands thousands of plausible sketches — synthetic sky maps.