“Disappeared” matter in the room between the galaxies discovered

What exists in the vastness of the cosmos there is still matter in the vastness of the cosmos, despite increasingly sensitive observation technology, astrophysics is still puzzling in many ways. If you look at the movement of the visible matter, for example, you can only come to the conclusion that there must be significantly more mass in the universe than can be observed immediately. In order for the invoice to be correct again, scientists postulate the dark matter, the composition of which is one of the great open questions of cosmology.