[Netease Smart News, August 13th] In the vast universe, will the Earth be the only planet in existence?

Recently, according to astronomical observations, there are four planets with the size of the Earth around the solar system. The four planets revolve around the nearest star, Tiancang Five (also known as the Tau Ceti, English name “Tau Ceti”).

The study found that Tiancang Five is only 12 light years away from the earth and is visible to the naked eye. This further confirms that Tiancang 5 is the hypothesis of a quasi-galaxy center. For decades, Tiancang V has been appearing in major science fiction novels.

Steven Vogt, an astronomer at the University of California, who participated in the study, said that after careful calculations, these four planets are commensurate with the Earth's volume. In this regard, researchers at the University of Hertfordshire, UK, said that the discovery has a milestone significance, which marks the future may find a planet with similar geological characteristics of the earth, is expected to find in the above mountains and rivers and even the existence of life. He said: "Regardless of how we look at the star, there are at least four rocky planets orbiting it around. We are slowly learning to distinguish the difference between the shaking caused by the planet and the shaking caused by the active surface of the star. This allows us to basically verify the existence of two potentially habitable exoplanets in the system.” At the same time, this finding was also described in detail in an upcoming publication.

According to foreign media reports, one of the four newly discovered planets has a mass that is only 1.7 times that of the Earth. In addition, there are two planets in the livable zone around the five stars of Tiancang, where the temperature is suitable for the existence of liquid water, scientists speculate that there may be extraterrestrial life. It is reported that an international team of scientists has designed a new, more accurate and sensitive planetary detection method to search for "swings" in the star movement caused by the orbital gravitational attraction, and at the same time, better eliminated false alarms from the activities of the star itself. .

In recent years, scientists have been constantly searching for planets similar to the Earth outside the solar system. According to statistics, the Kepler Space Telescope has so far discovered thousands of exoplanets. On June 19, NASA announced the discovery of 10 newly discovered livable exoplanets resembling the Earth. In NASA's Exoplanet Archive, since the Kepler Telescope was used in 2009, 49 similar planets have been discovered so far, of which 30 have been verified. Of the 4,034 potentially exoplanets discovered by Kepler, 2,335 have been confirmed.

Although scientists have not yet discovered whether there is life beyond the Earth, whether human exploration of other planets has a curiosity such as human intelligence will never stop, but now nobody can rule out the possibility of the existence of extraterrestrial life. Unfortunately, the potential for life on a potentially habitable rocky planet in the system is not very great. The massive debris around the stars means that the planets are likely to be hit by asteroids and comets, making life difficult to emerge.

Despite this, NASA scientist Mario Perez still said that according to historical observations, Earth-like planets abound in the vast universe, suggesting that humans may still not be the only living beings in the universe. In the vast galaxy, the discovered exoplanets are only a drop in the ocean. There are still thousands of planets to be observed by humans in the future. Do you believe in the existence of extraterrestrial life? (Selected from: Cent Compiler: NetEase Sees Off-The-Shelf Intelligent Compiling Platform Review: Gao Mingmei)

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