Cosmic 'missing' matter found drifting between galaxies, hurled there by violent galactic processes

Researchers using CHIME/FRB data and DESI galaxy maps cross-correlated thousands of fast radio bursts with galaxy locations to show a substantial amount of ordinary matter lies outside galaxies in diffuse clouds, likely ejected by energetic events such as black hole jets and supernovae—brightening the picture of where the universe’s missing baryons reside and implying these galactic processes are more powerful than previously thought.