The trivial people on earth are pinched to death by the universe

The trivial people on earth are pinched to death by the universe

The earth is the common home of our human beings. 70% of this 60 trillion-ton planet is covered by oceans, and it is a blue planet in space. The earth has given birth to such a colorful world in billions of years, and the sun has also made an absolute contribution.

Humans see that the mass of the earth is 60 trillion tons is a super huge number, and in the solar system, the sun is the undisputed boss, its mass accounts for 99.8% of the entire galaxy, while the proportion of the earth is only 0.000299714% about.

It takes 250 million years for the solar system to revolve around the Milky Way, and it is unknown whether there is a dangerous area ahead, but the cycle of "mass extinction" on Earth seems to coincide with this time. The sun is just an average member of the 400 billion stars in the Milky Way, and the number of planets around stars like Earth should be an order of magnitude larger.

So when it comes to aliens, it's no wonder that people think of the "Fermi Paradox".

The Milky Way is about 100,000 light-years in diameter, and the Andromeda galaxy is larger than the Milky Way within 10 million light-years. The Andromeda Galaxy is 220,000 light-years across, and it and the Milky Way each have small "satellite" galaxies orbiting them. The more massive celestial bodies will have strong gravitational force, the current appearance of the Milky Way is estimated to be the result of absorbing and merging some small galaxies, maybe the material that formed the solar system also came from other "annexed" small galaxies.

According to the trajectory of the galaxy, the Milky Way and Andromeda may also merge in 4 billion years.

Astronomers estimate that there are at least 2 trillion galaxies like the Milky Way in the universe. According to the characteristics of human cognition, astronomers call these visible galaxies in the area of ​​10 million light-years near the Milky Way the "Local Group of Galaxies".

The universe we see is only the shape that we can see with the naked eye, and the shape of the visible celestial bodies in the universe is also shaped by the ubiquitous dark matter and dark energy. In fact, the vacuum is not empty, and dark matter and dark energy may also exist in all things in the universe.

Anyway, in the empty universe around us, the Local Group of galaxies seems to be a visible and self-contained galaxy cluster.

"Being in this mountain" can't see the original appearance of the mountain. Putting the perspective on a scale of 110 million light-years, the Local Group of Galaxies is in a larger "Virgo Supercluster" settlement. The Local Group of galaxies is located in the outer constellation of the Virgo Supercluster, emitting a dim light.

To the next level, we come to the Laniakea supercluster, and it becomes clearer and clearer that we are part of the cosmic fiber.

At the level of 1 billion light-years "Pisces-Cetus Supercluster Complex", it is only one of the thousands of nodes in the "big neural network" of the universe. The Virgo Supercluster is less than 0.01 of the mass of this complex.

The amount of the earth to the universe is like the amount of sand to the earth. This quantitative relationship of the universe often makes people's brains hurt.

It is not the murderous and tyrannical aliens who have descended on the earth that make the hair stand on end and the backs are chilled, but the universe has its own internal order, and it is difficult for life to escape the circle that gave birth to it.

Taking people as an example, in order to come up with the circle of the solar system, it is necessary to overcome changes in cosmic radiation, gravity, temperature, speed and other related factors, and life on earth is only the product of these elements within a certain range of values. Can people use it? The technical means to extend the upper and lower bounds are unknown.

The current Earth environment is the product of the coincidence of layers of structures such as the Solar System, the Milky Way, the Virgo Supercluster, and Laniakea under the complex motions of different locations and speeds. Can you escape from the Milky Way if you escape from the solar system? Can you get rid of Raniakea's "giant source" without the Milky Way?

Perhaps within the layers of structures of these sub-universes, life has been born at different times, and this layer of structure is destined to be the layers of cages of life. Most of the alien life forms similar to life on Earth are likely to be wiped out by the "invisible avenue" of the universe when they accumulate technology and break the circle.