What’s New: The newest alien world from Earth has at least three planets

2022-06-02 0 By

Earth’s closest neighbor in the universe is the moon, which is only 380,000 kilometers apart, while our solar system’s closest neighbor is Proxima Centauri, which is 4.22 light-years apart.According to the famous science fiction writer Liu Cixin, the closest alien world to the solar system is the home of the Trisolaran civilization, the final destination of the wandering Earth project, and the most likely place for extraterrestrial life and civilization. Is it possible for life or habitable worlds to exist in the nearby galaxy?Astronomers tell us that as a low-mass red dwarf, astronomers have previously discovered two planets in orbit around Proxima Centauri, Called Proxima B and Proxima C.Proxima b is a super earth among them, the quality is 1.27 times the mass of the earth, but due to its proxima too close, so have been tidal locking, that is to say, it was always night proxima b on one side the other side is always during the day, very cold and very hot around the planet, only with suitable temperature near the terminator.Proxima Centauri C is 220 million kilometers from its star. Because of its low luminosity, Proxima Centauri C is actually outside the habitable zone.But just beyond these two planets, astronomers have recently discovered a new planet, Proxima Centauri D, which makes the nearest star system to our solar system home to at least three alien worlds.According to esO scientists, Proxima D is only about a quarter the mass of Earth and only 4 million kilometers away, about a tenth the distance between Mercury and the sun. It orbits farther ahead than Proxima B and therefore receives more stellar radiation.The discovery of proxima d orbital speed, every 5 day can complete a period of revolution, therefore proxima d is only five days a year, super red dwarfs radiation also has become the small planet, so there is no doubt that the newly discovered proxima d is not suitable for living, life is also unlikely to exist.As the smallest asteroid astronomers have found using the radial velocity method, the discovery of Proxima Centauri D suggests that stars in the universe are likely to have more than one planet, and may not even rule out the future discovery of a large system like our own with as many as eight planets.Although Centauri D is uninhabitable, that doesn’t stop astronomers from looking for Earth-like planets, which are important in the search for extraterrestrial life. If enough earth-like planets are found, there will always be signs of life.But some astronomers think the search for extraterrestrial life doesn’t really need to go beyond our solar system, because some of the planets in our solar system are extraterrestrial and in much better conditions than proxima Centauri.Specifically within the solar system, Mars, Jupiter’s Europa Saturn’s Titan, the existence of life is probably planet, because close Mars had oceans and the atmosphere as well as the appropriate magnetic field, Europa and Titan is rich in water resources, underground and the ice of the three planet may harbor life, and may even have life.According to NASA, molecular structures have been found in seabed and waterways throughout Mars, and the planet’s underground lakes and polar ice caps could also have evolved into life.Europa’s icy ocean could have spawned life by a combination of thermal catalysis in the planet’s core and undersea volcanoes, like those around earth’s undersea craters 3.8 billion years ago.Generally speaking, with the progress of astronomy, human beings are actually more and more aware of the commonness of themselves and the earth under their feet, because there are too many planets in the universe. In the case of a sufficiently diverse and large base, no matter how small the probability of life and civilization is, the final result will definitely exceed people’s expectation.