Scientists find a world of 100 light years, will there be human beings?
Author:Space -time communication Time:2022.08.25
A group of scientists have recently discovered a new outer planet (planets outside the solar system, the same latter), which is said to be a water world there, more than water on the earth. Water is the source of life. If there is life there, humans may find a conscience.
This newly discovered exogenous planet is numbered to-1452 B. According to the rules of the outer planet number, this should be a star revolution called TOI-1452, while "B" represents this one that is this one The first planet found in the star, then if there are other planets, will be found in the back of the star code according to "C, D, E, F, G, H" according to "C, D, E, F, G, H".
So, what kind of planet is this, what is the meaning of our future? Let's take a look at this planet together.
Discovery and modeling
This exogenous planet was discovered by a team led by Charles Cadieux, a team of layman of the University of Montreal, Canada. In the magazine, the paper introduces the unique nature and characteristics of this planet.
This planet was discovered by the survey satellite surveyed by the Lingri foreign planet. This satellite is referred to as TESS, which is nicknamed "Tess" in Chinese. "Tess" is a satellite developed and manufactured by NASA (NASA (abbreviation of the US Aerospace Administration). It was launched in 2018 and has a telescope function for the pioneer search project. The successor will also become the assistant of the Weber telescope launched later.
In the space mission of "Tess" for several years, hundreds of thousands of stars were observed, and many new outer planets were discovered. TOI-1452 B was the latest discovery of TESS. This outer planet is about 100 light years away from us, surrounding a star revolving of TOI-1452 in a double star system located in Dragon.
TOI-1452's brothers were named TIC 420112587. This is two red dwarfs with similar sizes, each of which is about a quarter of the sun. Red dwarf refers to the collective name of less than 50%of the sun. The distance between the two red dwarfs is only 14.5 billion kilometers, but the distance between the sun and Pluto is 2.5 times the distance.
According to the layman's naming rules, it is found that the first planet of a star has suffered a small letter "B" as the suffix. For the suffix, the planet surrounding the TOI-1452 star transfer was named TOI-1452 B.
Due to the small quality of red dwarfs, the heating nuclear reaction does not have the fierce yellow dwarfs like the sun, so the brightness and temperature are relatively low. The surface temperature of Toi-1452 is only about 2900K, which is about half of the temperature of the sun. However, the TOI-1452 B is only 9.12 million kilometers from the TOI-1452 star, which is about 16%from Mercury to the sun. Therefore, the surface temperature of the planet is just in a livable zone.
The so -called livable zone is located not far from the main star, and the surface temperature of the planet is suitable for the existence of liquid water. Scientists at the University of Charles Cardio and the University of Toronto, by using Spirou (a new type of spectrometer) to model the spectrum analysis of the planet, found that the water reserves of the planet are very large, and they occupy the quality of the entire planet. 30%, while the earth's water reserves account for only 1%of quality.
What concept is this? It is likely to be a planet that is completely covered by water. If there is life there, it will be a kind of aquatic life.
So, will there be life on TOI-1452 B?
Can't know yet. Nowadays, the telescope is not only difficult to see the outer planet, but the vast majority of stars can only see one light spots, that is, the appearance of stars cannot be seen. Therefore, with the current observation capabilities of human beings, not only can we see the life there, it is the planet itself.
Now I find that the outer planet is mainly through the Lingxing method, that is, when a planet runs between the stars and our sight, the shielding phenomenon of the star will appear, which will make the star darker slightly and affect the light of the star. Scientists can analyze if there is a planet and what kind of operation cycle can be analyzed through the light change cycle of the stars. Then, supplemented by observation of the gravitational impact between planets and stars to calculate their quality.
Now the most precise spectrometer, such as the infrared spectrometer carried by Weber Wangyuan, can analyze the atmospheric components of the external planet. The metabolism of life will generate some special substances to leave traces in the atmosphere, such as oxygen and methane. The precise spectrometer can find evidence of life from the atmospheric group to find the atmospheric group.
According to the characteristics of the earth, water is the first needs of life. But with water, life may not produce life. In the solar system, many planets exist, and some planets have more water than the earth. According to scientific investigations and analysis, in ancient times, Venus and Mars may have liquid water, but no evidence of life has been found so far.
Therefore, even if TOI-1452 B is really a world of water, there may not be life existence. Moreover, because the planet is very close to the main star, the orbit of the revolution is small, and the speed of the revolution is fast. It only takes 11 days to turn around (one year). And according to the distance from the main star, this planet is likely to be locked by the star tide, that is, always facing the star. In this way, toi-1452 B is always baked at high temperature towards the star, and the side of the stars will always be frozen and cold. In such a two-day environment, how difficult the birth and existence of life is What happened. And the spots of red dwarfs are very powerful, and the TOI-1452 B, which is so close to, may be constantly bombarded by the energy of spots.
Therefore, it is difficult to say that there will be life. However, now there is a Weber telescope. Now that I have discovered such a fresh place, I think NASA and Weber team will not let go of this opportunity, and it will quickly let Weber's deep eyes be aligned. In the future, good news will come.
When can humans travel there?
At least now I dare not do dreams, because TOI-1452 B is 100 years old. What does light -year mean? It is the unit that walks for a year, indicating a unit of astronomical distance. The vacuum speed speed is 299792.458 kilometers per second, and the year is 3155,7600 seconds, so a light year is about 9.46 trillion kilometers.
So far, only 12 human beings have a paraler passing through the moon with an average distance of 384,000 kilometers. The farthest artificial no -man detector is a traveler No. 1 and flew for 45 years before flying 23.5 billion kilometers. It is generally believed that the gravity control radius of the sun is about 1 light years. In other words, it takes more than 17,000 years to fly out of the solar system at a speed of about 17 kilometers per second at a rate of 17 kilometers per second.
If you want to fly to TOI-1452 B, it will take 1.17 million years. Even if the increase is 100 kilometers per second, it takes 300,000 years to fly to TOI-1452 B. Therefore, even if there is really a world of ocean, there are many strange lives in the world of water, we can only sigh. No, in fact, even "looking", you can't do it, you can only "think".
In the future, human beings will fly out of the solar system and go to the deep space of the universe for interstellar immigration. At least two problems must be solved: 1. Breakthrough the speed limit of light, adopt time and space folding or wormhole crossing technology for interstellar voyage; 2. greatly extend human life span, or or Change the way of physical survival and exist in ideology in order to cope with long -term interstellar travel.
Can our next or next generation wait until this era comes? Welcome to discuss reviews.
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