Many people may have such a question, that is, what is the meaning of exploring the universe? From ancient times to the present, human beings have been constantly exploring the unknown world, is it really just to satisfy curiosity? Maybe the answer is not so simple as thought, because exploring the unknown world is not only to satisfy curiosity so simple, but more importantly, for the survival of human beings, when humans go out of the earth to find that the earth is very small in the universe, once we were proud of the earth, in the universe as big as a grain of sand, and the universe is full of dangers, such as asteroid impact, gamma rays produced by star explosions, etc., which may threaten the safety of earth organisms and human beings.
Human beings have a preliminary understanding of the universe after going out of the earth, now we know that the diameter of the solar system is 4 light-years, the solar system is in the Milky Way, the diameter of the Milky Way is about 200,000 light-years, the Milky Way is only a small galaxy in the universe, the current human can observe the diameter of the universe is about 93 billion light-years, but this is not the full scope of the universe, the universe may be larger than we imagined, at present, human beings have found that the most powerful celestial body in the universe is the black hole, and the black hole was proposed by scientists more than 100 years ago It was just that at that time, human technology was not developed, and black holes have not been found in the universe, and later with the progress of human science and technology, humans finally took pictures of black holes, which also proved that black holes are real in the universe.
Black hole is formed after the death of supermassive stars, our sun is a star, but the sun belongs to small-mass stars, so the sun will become a white dwarf after death, according to the scientists' research on black holes, scientists found that black holes can swallow any matter, even light can not escape the gravitational pull of black holes, because they can not see its true face, so scientists call this celestial body is a black hole, according to scientists for many years of exploration of the universe, scientists have discovered a surprising secret, That's a black hole called GROJ1655-40 that's moving toward Earth, and according to scientists' observations, the GROJ1655-40 black hole is 6,000 light-years from Earth and is now approaching the solar system at 112 kilometers per second, and if there is no interference along the way, it will reach the solar system in 10 million years.
Why this black hole moves so fast, in fact, this is related to the initial kinetic energy, according to the research of scientists, all the celestial bodies in the universe are moving around the supermassive black hole at the center of the galaxy, and each celestial body can maintain a relative balance between them, but there are two kinds of celestial bodies in the universe that can break this balance, they are black holes and neutron stars, black holes are formed after the death of supermassive stars, neutron stars are formed after the death of moderate-mass stars, and their gravitational pulls are very strong. So as soon as they appear, they have strong energy, and strong movement allows them to move rapidly in the universe without the gravitational attraction of other celestial bodies.
Scientists calculated according to the model that this GROJ1655-40 black hole will pass through the middle of the solar system, when it carries out the solar system, its strong gravitational pull will make the solar system into chaos, the sun's gravity is no way to resist this black hole, then all the material in the solar system will be swallowed up by this black hole, the earth will not be an exception.
If the black hole GROJ1655-40 reaches the solar system in 10 million years, what should humans do? Scientists believe that human beings have two choices, the first choice is to escape from the solar system, although the current human technology to leave the solar system is basically impossible, but human beings are the most intelligent life on the earth, human beings can go out of the earth in just a few thousand years, indicating that human science and technology development is still very fast, if given human beings 10 million years of time, human technology must be much more powerful than now, then we can leave the solar system and find a new home.
There is also a way to eliminate black holes, may many friends sound a little incredible, but the elimination of black holes is not impossible, the future of human beings want to quickly improve the speed of development of science and technology, you must use powerful energy, the earth's current energy has not been able to meet the needs of human beings, only the black hole this powerful energy can meet the needs of human science and technology, so the future of human beings will definitely use the energy of black holes, after 10 million, We can convert the black hole GROJ1655-40 into human energy, which also resolves the crisis of the solar system, we stand in this era to look at this problem, think it is impossible, this is the same as humans more than 2,000 years ago, at that time they also thought that flying out of the earth is impossible, but now it seems that flying out of the earth is possible, then the elimination of black holes is only a matter of time.
At present, human beings do not know much about black holes, and now we only know that black holes are a mysterious celestial body with very large gravitational pull, and black holes have other functions in the universe in addition to devouring celestial bodies? At present, scientists are still exploring, in the future, if human science and technology development reaches a certain level, maybe we can solve the mystery of black holes, maybe black holes are really like Einstein said, black holes are the entrance through time and space, from black holes into the black hole will cross to another world, what is the truth? Further exploration by humans is needed, Xiaobian hopes that human beings can solve the mystery of black holes as soon as possible, for which we think that when the black hole OFROJ1655-40 comes, how should we deal with it?