they found the lost matter of the universe

scitechdaily article says they found all that missing matter in the universe.

they are not talking about dark matter, but ordinary matter that seemed to be missing.

In the new research, an international team pinned down the missing third, finding it in the space between galaxies. That lost matter exists as filaments of oxygen gas at temperatures of around 1 million degrees Celsius, said CU Boulder’s Michael Shull, a co-author of the study.