Black holes are not cold! Can black holes become the home of life?

2021-01-11 | Xinchu Science Original |

A world full of moisture, atmosphere, and land, plus a star as stable as the sun, is an ideal home for life in the universe.

As humans understand the cosmic bodies, there are more and more possible habitats for life. Life can not only survive near yellow dwarfs similar to the sun, but also near red giant stars and white dwarfs.

And there is a potential habitat for life in the universe-near the black hole!

Although black holes are "black", black holes are not "cold"!

Black holes are completely unattractive to life. As a huge gravitational monster, any object close to the horizon of the black hole will be drawn into spaghetti. If it is swallowed by the black hole, it may be the day when the universe is destroyed before it can escape from the black hole.

All objects in the universe cannot escape from black holes, even light, which also makes black holes without any light. Compared to stars, black holes are very selfish, and they don’t want to share even a trace of light. On the other hand, the gravity of black holes providesAn extra surprise.

The most powerful radiation in the universe is the cosmic microwave background CMB. CMB penetrates almost the entire universe and can easily submerge the radiation of stars and even galaxies.

As radiation, CMB has a temperature, absolute zero is -273.15℃, and the temperature of CMB is about -270℃, which is too cold for life, but when these radiations enter a black hole, strong gravity will make these radiations collide with a large number ofEnergy, microwave frequencies will gradually undergo red shift, and infrared or even ultraviolet rays will appear near the black hole.

The closer the CMB is to the black hole, the higher the temperature will be, and it will reach a very high temperature before reaching the black hole's horizon.

Black holes are the potential home for life in the universe!

If we fall into a black hole, when we are close to the black hole, we will not be frozen into ice, but will feel very warm; if a planet approaches the black hole, the ice on the planet will gradually melt into liquid water and become aHome of life.

More importantly, the black hole's rotation speed is very fast. The strong gravitation and rapid rotation will make the infrared and ultraviolet converted by the CMB gather into a light beam. The overall effect is very similar to a star.

Planets close to black holes will be affected by gravity to expand their horizons. Although the infrared light converted by CMB is a beam, it can cover a very wide area. When planets the size of the Earth are close to black holes, about 40% of the surface will be illuminated.If the planet rotates, then the planet can also get full day and night.

But in a sufficiently warm black hole orbit, the planet will be in a very dangerous situation. Perhaps one day you will wake up and you will find that the entire planet has fallen into the black hole. In order to keep the black hole and the planet in balance, the planet’s revolution speed needs to be closeSpeed ​​of light!

Planets near the black hole, enjoy a different time!

The larger the black hole, the larger the habitable space provided, and the smaller the black hole is, the more dangerous it is for life. However, the planet is too close to the black hole and the revolution speed is close to the speed of light, which will cause the planet's time system to expand.

One second after the planets near the black hole, the outside world may have experienced several days or even years; the planets near the black hole gave birth to the first generation of life, and the outside world may be sitting on a spacecraft and start traveling around~

Black holes can indeed become potential homes for life, but they can also have a serious impact on life.

If the earth is the prison of the universe, then black holes can be called the "death prison" of the universe. Due to the expansion of time, the development speed of life will be very slow relative to the outside world. Any change in the planet may cause the balance to collapse.Directly swallowed by black holes.

It is basically impossible for life near a black hole to explore outer space. Unless the black hole can be used to develop a superluminal vehicle, it will be difficult to escape the gravitational range of the black hole; even if other life discovers life near the black hole, it will notYou may risk approaching the black hole. If you waste too much time near the black hole, you may never go back to the original world time expansion near the black hole, 1 hour may be equal to several years outside.

Human beings live near yellow dwarfs now; in the future, the sun will swell into red giant stars, and humans can also live near red giant stars; after the red giant stars collapse into white dwarfs, humans can get enough energy as long as they are very close to the white dwarfs.

When all the stars in the universe die and enter the black hole stage, life may only risk living near a supermassive black hole. Living near a black hole will greatly extend the time left for us by the universe, and perhaps life can work together to enter other suitsLiving in a parallel universe!

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