Who discovered dark matter? How dark matter was discovered

In the early 30s of the 20th century, Zwickey, an astrophysicist at the California Institute of Technology, was the first to discover that the visible matter in the universe is far from enough to connect the universe, and if it were not for the existence of a mysterious and invisible matter, the galaxy would have fallen apart long ago.

Scientists call this unseen, mysterious substance "dark matter." By the 70s of the 20th century, various astronomical observations, such as the rotation curve of disk galaxies, X-ray observations of galaxy clusters, gravitational lensing, etc., showed the existence of dark matter. But until now, no definitive dark matter signal has been detected.

Although scientists don't yet know exactly what dark matter is made of, they still know something about it by observing how it affects ordinary matter and simulating its gravitational effects

More than 95% of the universe is dark matter and dark energy, and dark matter accounts for it. Dark matter does not emit light, emits electromagnetic waves, or participates in electromagnetic interactions, and cannot be directly "seen" by any optical or electromagnetic observation device.

Dark matter is not discovered, but speculated (speculated).

To date, dark matter has not been discovered.

Dark matter astronomers observe the starry sky and discover an abnormal aggregation of rivers in the universe that exceeds the coefficient of gravitation. In the spirit of the habit of creating a substance that cannot be discovered by humans at once when reality does not correspond to theory (the previous product of this habit is the famous ether), scientists speculate that there is a substance in the universe that cannot be observed by humans, does not have any coupling with electromagnetic waves, and only has gravity. Because this substance cannot be coupled (interfere with each other) with electromagnetic waves, it is named dark matter.

Later, when astronomers observed the movement of stars in the Milky Way, they were surprised to calculate that the movement of celestial bodies in the Milky Way was not affected by dark matter at all. In order to maintain the existence of dark matter, astronomers have announced that dark matter exists in the form of a halo around the river system, and the dark matter halo carefully attracts other river systems, and at the same time, it is more careful not to affect the operation of celestial bodies inside the river system.

And the latest news, astronomers have high hopes, is sure that the instrument that can detect dark matter (the Large Underground Xenon Dark Matter Experiment (LUX)) has detected nothing--- in my opinion, Dongdong, which does not exist at all, certainly cannot detect it.

Let's talk about my personal understanding of dark matter.

Dark matter simply does not exist, and there may be two reasons for the abnormal aggregation of river systems.

1 The theory of relativity does not explain the relationship between mass and space perfectly, when the mass reaches a certain level, the quantitative change leads to the qualitative change, and the depression of space is intensified, causing the river system to be attracted to a degree that exceeds the gravitational force caused by its actual mass.

2 Perhaps there is something outside the universe that has an effect on the universe.

PS: The term extracosmic is very unscientific, I know.