The unknown world is always full of conjectures. For example, I have said in other articles before: In ancient times, people believed that the other side of the sea was another world, and they believed that there were fairy mountains on the sea, and there were gods and immortals. In fact, the ancients were not ridiculous. Because contemporary humans are essentially the same as the ancients looking for gods on the sea.
In modern times, astronomers and biologists believe that there are also organisms in other planets in the solar system. However, starting from the mid-20th century, with the continuous improvement of human universe exploration technology, this conjecture was also broken: Venus and Pluto , one is about to die of hotness and the other is about to die of coldness, and there is no living creature; Mars and the moon are also desolate and lifeless. To this end, humans have set their sights on planets outside the solar system.
For example, in recent years, humans have been full of expectations for Kepler 22b.
1, the distant planet
Kepler 22b is the first planet observed by a professional device in the United States in 2009, and announced the discovery of the planet at the end of 2011. This planet is about 638 light-years away from Earth. Even if humans can master space tools as fast as the speed of light, it will take 638 years to reach Kepler 22b.
That is to say, if someone can master interstellar transportation as fast as the speed of light from the 17th year of Hongwu in the Ming Dynasty (1384 AD) and set out from the earth, then he can only arrive at the distant planet Kepler 22b this year.
In fact, the celestial bodies outside the solar system that the ancients could observe (such as Xinsu II and Disu San) were all stars. Most of the discovery of exoplanet has to rely on modern professional astronomical tools. So, it was not until 2009 that humans knew the existence of Kepler 22b.
Although Kepler 22b is too far away from the earth, humans are very interested in this planet.
2, controversial planet
Human beings are interested in Kepler 22b, largely because according to current astronomy knowledge and technology, Kepler 22b is likely to be a planet similar to the situation on Earth. Because this planet is also located in the habitable zone. However, Kepler 22b is a bit larger than Earth's size - its radius is 2.5 times that of Earth. In addition, the Kepler 22b revolution cycle is 290 days, which is different from the Earth, but is generally similar.
Scientists believe that the temperature of Kepler 22b is roughly similar to that of the Earth. So, from an environmental perspective, this is a planet that people on earth are very suitable for immigration to: for people on earth, they will not feel uncomfortable in terms of climate and time cycles.
However, some scientists also object. For example, some scientists believe that humans’ understanding of Kepler 22b is mostly based on speculation. It is not even ruled out that this distant planet may be a gaseous or even a liquid planet. If Kepler 22b is a planet like Jupiter or Neptune , then humans cannot even log in, let alone immigrate or settle down.
Of course, some people think that if the main part of Kepler 22b is the ocean, then even Kepler 22b will have marine life. Just like the Earth hundreds of millions of years ago.
3, meaning
Of course, there are many cases of misunderstandings in astronomical research. For example, the Mars Canal centuries ago, Pluto was regarded as the ninth largest planet of in the last century. Therefore, in modern times, we cannot rule out that there may be misjudgment of the situation of Kepler 22b. However, I believe that in a few years, with the continuous advancement of human astronomical observation technology and optical technology, humans will sooner or later find out the true face of Kepler 22b.
For humans, humans have enjoyed the benefits brought by industrial civilization. However, the development of industrial civilization comes at the cost of consuming earth's resources. Therefore, it is a long way to go to find a home suitable for human migration in the future. Therefore, although at present, for humans, studying planets like Kepler 22b seems to be of little significance. But if humans can master the wormhole travel technology, then the research on other planets will be of great significance.
