There is nothing triumphant for a scientist, than the moment when theoretical calculations are confirmed by practical research. Especially if between them lies several decades of improving technology and tools. Even in the last century astrophysicists guessed that most of the real or baryonic matter should be concentrated somewhere between galaxies and stars. But it was possible to discern only today.
To understand the scale of the discovery: according to the current model of the universe, the 95% universe consists of mysterious dark matter, plus dark energy, and the remaining 4.6% is the usual matter familiar to us from electrons and protons. But when scientists calculated the amount of matter in the stars, the hot gases of galactic clusters and in the interstellar medium, it turned out to be 50% less than necessary. Where did the rest hide?
It turned out that the substance is, but because of the extremely low density, it is impossible to “see” it. It was necessary to use the Sunyaev-Zeldovich effect, which describes the changes in the emission of the relic radiation when interacting with hot but invisible gas of interstellar voids. Data from the orbiting observatory Plank for 260 000 pairs of galaxies showed – between them stretched thin gas threads, in which the missing 50% of real matter.
Scientists not only found the allegedly missing matter of the universe, they once again confirmed and refined the model of its arrangement. A multidimensional system with large and small nodes created by gravitational forces , between which invisible, stable connections are stretched. Fundamental theories, some of which are more than half a century old, receive their confirmation – we are all getting to know better how the world is organized around.