Astronomers: 95% of the universe is invisible, what secrets are hidden behind this?

in #universeyesterday

According to the Big Bang universe model, the origin of the universe is an incredible thing: 13.82 billion years ago, the universe suddenly burst out of time and space at the speed of light from an invisible point. So far, the observable universe has a diameter of up to 93 billion light-years, with at least 2 trillion galaxies. The Milky Way is just one of them, but strangely enough, scientists have found that all matter in the Milky Way accounts for only 5% of the total mass and energy of the universe. Although the

6108cb41-caad-423b-9660-d3dc29c951c1.png
remaining 95% of the mass and energy do exist, we cannot see them. These invisible matter and energy are now referred to as dark matter and dark energy, the latter of which accelerates the expansion of our universe, leading to increasing distances between galaxies. Observers may be a bit confused about this, as in the 1920s, American astronomer Edwin Hubble discovered that the Andromeda galaxy, located 2.54 million light-years away, was approaching the Milky Way. The two will collide in 3.75 billion years. Why is it said that dark energy causes galaxies in the universe to move away from each other? This is because the repulsive force of dark energy within a small range

![dae83310-699f-42c6-9e91-68afa577c307.png]
ea093c43-faab-4714-af05-6c7016dd0e96.png

cannot yet match gravity. According to the Hubble constant measured by the Hubble Telescope, it represents the speed of cosmic expansion, and currently our universe only increases by 70 kilometers per second every 3.26 million light-years. As the two most massive galaxies in our galaxy cluster, the Milky Way and the Andromeda Galaxy exert a gravitational force on each other that far exceeds the repulsive force of cosmic expansion. Therefore, these two galaxies will collide and merge into a new galaxy in the future. Astronomers believe that the accelerating force of cosmic expansion currently only acts on large structures, such as cosmic walls extending billions of light-years or superclusters with diameters of billions of light-years. Only at this scale can the expansion speed of tens of kilometers per second reach a level sufficient to tear apart the walls of the universe and superclusters. However, the most challenging issue with the theories of dark matter and dark energy is that all current indications are based on assumptions about their existence and subsequent explanations, yet astronomers have never truly detected them. Therefore, some scientists are now beginning to believe that dark matter and dark energy may not exist, just like the ether in the past, which was invented by humans to explain the universe and does not objectively exist. Some physicists have taken different approaches, believing that behind the accelerating expansion of the universe and the anomalous stellar velocities at the edges of galaxies, there is not dark matter and dark energy, but a new fundamental force different from gravity, that is, there should be five fundamental forces instead of the current four. This new force is called Quintessence, and it mainly acts on billions of light-years, below which it looks like gravity. The origin of the university is an incredible thing, according to the Big Bang universe model: 13.82 billion years ago, the universe suddenly surged out of time and space at the speed of light from an invisible dot.Up to now, the diameter of the observable universe is as long as 93 billion light years, with at least 2 trillion galaxies inside. The Milky Way is just one of them, but strangely enough, scientists have found that all galactic matter only accounts for 5% of the total mass and energy in the universe. Although the remaining 95% of mass and energy certainly exist, we cannot see them.These invisible matter and energy are now referred to as dark matter and dark energy, with the latter accelerating the expansion of our universe and causing galaxies to become increasingly distant from each other.Observant people may be a bit puzzled by this, because in the 1920s, American astronomer Edwin Hubble has discovered that the Andromeda galaxy, located 2.54 million light-years away, is approaching the Milky Way. The two will collide in 3.75 billion years. Why is it said that dark energy is causing galaxies in the universe to move away from each other? This is because the repulsive force of dark energy within a small range is not yet a match for gravityAccording to the Hubble constant measured by the Hubble Telescope, which represents the speed of cosmic expansion, currently our universe only increases by 70km/s every 3.26 million light-years. As the two most massive galaxies in our galaxy group, the Milky Way and Andromeda exert a gravitational force on each other that far exceeds the repulsive force of cosmic expansion. Therefore, these two galaxies will collide and merge into a new galaxy in the future.Astronomers believe that the force of accelerated expansion in the universe currently only acts on large-scale structures, such as the cosmic wall that stretches for billions of light-years or superclusters with diameters of hundreds of millions of light-years. Only at this scale can the expansion speed of tens of kilometers per second stack up to a strong enough level to tear apart the cosmic wall and superclusters.However, the most awkward problem with the theories of dark matter and dark energy is that all current indications are based on the assumption of their existence and subsequent explanations, yet astronomers have never truly detected them. As a result, some scientists are now beginning to believe that dark matter and dark energy may not exist, just like the ether of the past, which was invented by humans to explain the universe and is not objectively existent.Some physicists have taken a different approach, believing that behind the accelerated expansion of the universe and the abnormal velocities of stars at the edges of galaxies, it is not dark matter and dark energy, but a new fundamental force different from gravity, that is, there should be five fundamental forces instead of the current four. This new force is called Quintessence, which mainly acts on billions of light years, and below that, it looks like gravity.

The origin of the universe is an incredible thing, according to the Big Bang universe model: 13.82 billion years ago, the universe suddenly surged out of time and space at the speed of light from an invisible dot.
Up to now, the diameter of the observable universe is as long as 93 billion light years, with at least 2 trillion galaxies inside. The Milky Way is just one of them, but strangely enough, scientists have found that all galactic matter only accounts for 5% of the total mass and energy in the universe. Although the remaining 95% of mass and energy certainly exist, we cannot see them.
These invisible matter and energy are now referred to as dark matter and dark energy, with the latter accelerating the expansion of our universe and causing galaxies to become increasingly distant from each other.
Observant people may be a bit puzzled by this, because in the 1920s, American astronomer Edwin Hubble has discovered that the Andromeda galaxy, located 2.54 million light-years away, is approaching the Milky Way. The two will collide in 3.75 billion years. Why is it said that dark energy is causing galaxies in the universe to move away from each other?
This is because the repulsive force of dark energy within a small range is not yet a match for gravity
According to the Hubble constant measured by the Hubble Telescope, which represents the speed of cosmic expansion, currently our universe only increases by 70km/s every 3.26 million light-years. As the two most massive galaxies in our galaxy group, the Milky Way and Andromeda exert a gravitational force on each other that far exceeds the repulsive force of cosmic expansion. Therefore, these two galaxies will collide and merge into a new galaxy in the future.
Astronomers believe that the force of accelerated expansion in the universe currently only acts on large-scale structures, such as the cosmic wall that stretches for billions of light-years or superclusters with diameters of hundreds of millions of light-years. Only at this scale can the expansion speed of tens of kilometers per second stack up to a strong enough level to tear apart the cosmic wall and superclusters.
However, the most awkward problem with the theories of dark matter and dark energy is that all current indications are based on the assumption of their existence and subsequent explanations, yet astronomers have never truly detected them. As a result, some scientists are now beginning to believe that dark matter and dark energy may not exist, just like the ether of the past, which was invented by humans to explain the universe and is not objectively existent.
Some physicists have taken a different approach, believing that behind the accelerated expansion of the universe and the abnormal velocities of stars at the edges of galaxies, it is not dark matter and dark energy, but a new fundamental force different from gravity, that is, there should be five fundamental forces instead of the current four. This new force is called Quintessence, which mainly acts on billions of light years, and below that, it looks like gravity.
However, whether it is dark matter, dark energy, or Quintessence, the scientific community generally acknowledges that there is indeed something in the universe that is influencing its fate, but our current technology is not sufficient to discover it.
The Euclid space telescope currently launched by the European Space Agency has specially designed a device that can capture one-third of the visible and infrared radiation in the entire sky in order to search for this hidden force in the universe. As a result, its imaging level and precision will exceed four times that of the original telescope. Astronomers hope to use it to trace back to the initial state of the universe as much as possible, which is 10 billion light-years away, that is, 10 billion years ago.
If there is really something hidden in the universe now, it should not have been obtained or completely disappeared 10 billion years ago. By studying the early universe, we may be able to answer the current questions.
ea093c43-faab-4714-af05-6c7016dd0e96.png

f38deb48-47c2-46ab-a1cf-887337bbf41d.png

71c22fd5-788a-4976-b4b2-fd6daf3a3879.png

Coin Marketplace

STEEM 0.22
TRX 0.24
JST 0.038
BTC 103665.42
ETH 3302.15
SBD 4.34