Officially found matter occupies more than half of the universe hidden for billions of years

This material hiding place has been revealed, and the efforts of two completely separate research teams have to be worked out.

For the first time in history, scientists have officially confirmed the mysterious material that the universe has hidden for billions of years. This is the result of two completely separate groups of astrophysicists.

According to known physical knowledge, the universe is composed of three elements: regular matter, dark matter, and dark energy . However, we do not have any clues about dark matter and energy, while matter is usually only defined about 50%.

The universe is composed of three elements: ordinary matter, dark matter, and dark energy.

Matter usually consists of fundamental particles, protons, neutrons and electrons. Experts have hypothesized they hid in the space between galaxies, but two new studies from the Astrophysics Institute (Orsay, France) and the University of Edinburgh (Scotland) and science are needed. justify this.

Specifically, the study shows that the amount of "missing" material lies in the air fibers connecting the galaxies together. This gas is very hot, but has extremely low density, so no telescope can observe directly.

Fortunately, this gas leaves very characteristic signs inside CMB (Background Radiation) - the concept of the first radiation of the cylinder, stemming from the Big Bang. Low-energy photons from CMB collide with electrons from this gas, take away some energy and cause CMB to change.

The connection area between galaxies contains more than half of the normal matter in the universe.

The problem is that, despite using the best equipment to monitor CMB - such as the ESA's Planck space telescope, is not enough to observe the effect. So, two research groups led by Dr. Hideki Tanimura and Anna de Graaff are forced to come up with another solution.

They picked out pairs of galaxies, predicting where the filaments could appear on the CMB map, then merging the signals together. As a result, they obtained more than 1 million such signals.

According to Dr. Tanimura, his research shows that the space between galaxies is more dense than we thought. In particular, the amount of hot air here is 3 times higher density than the average physical density in the universe. Even the number is up to 6 times in the Graff study.

The space between galaxies is much denser than we thought.

"This difference is in the predicted range, because we look at the data at different distances," Tanimura said. "If these factors are taken into account, I believe the results we get will be very consistent."

"After all, one of the mysterious materials of the universe has been decoded".

1. Decipher the mystery of dark matter
2. What is dark energy?