Researchers with the CHIME/FRB Collaboration found that diffuse “puffs” of ordinary matter fill the vast spaces between galaxies. The findings help explain why physicists’ estimates of the amount of visible matter in the universe are much larger than what we know exists within stars and galaxies.

Researchers with the CHIME/FRB Collaboration found that diffuse “puffs” of ordinary matter fill the vast spaces between galaxies. The findings help explain why physicists’…

Two mysteries come together to address a decades-long puzzle.