Scientists have found that “green” planets may also be habitable. Will migration into space come true?

As we all know, the main mass of a star system is occupied by its parent star. Therefore, even if the earth we live on is the earth like planet with the largest mass, density and mass in the whole solar system, the earth’s size is not really large. In space, astronauts see the earth as a blue planet, which has something to do with the fact that about 71% of its surface is covered by the ocean, although the blue observed by the naked eye may not be as strong as after image processing. < / P > < p > I don’t know how many people still remember a picture of the earth taken by Voyager 1 30 years ago. The background of the picture is vast space, and the earth is just a relatively bright blue pixel in the picture, which is why many people call this picture light blue dot. In early 2020, some foreign scientists updated this stunning photo, mainly through more advanced modern image processing technology to restore the image at that time. < / P > < p > in short, whether we’re standing billions of kilometers away from earth, or observing the earth in an orbit near the earth, the planet on which all known life depends seems to have something to do with blue. Therefore, many people believe that if there are other habitable planets in some corner of the universe, the color of these livable planets is likely to be blue. So, how do colors appear in the universe? Isn’t it possible that any of the other colored planets we see are suitable for life? < / P > < p > in fact, the colors that our human eyes see are not exactly the same as the colors seen by telescopes. In short, the colors that our human eyes can recognize only occupy a part of the total wavelength of the electromagnetic spectrum, and not even half of them. However, the telescope can receive a wide range of infrared and ultraviolet light, which can be regarded as “color” information. < / P > < p > in general, if it is about 450 nm electromagnetic radiation, our eyes will recognize it as blue. But if we could sense the entire range of the electromagnetic spectrum, the night sky would be much brighter than what we see now. Of course, even telescopes need to improve their observation technology step by step, just as the future James Webb Space Telescope will be able to observe the infrared electromagnetic spectrum. There is no doubt that the more colors a telescope can observe, the more information the object will reveal. For example, scientists can estimate the surface temperature of a star by its color. Normally, stars that are reddish are cooler, while stars that are closer to blue are hotter. < / P > < p > at the same time, the color of stars may also be closely related to the material composition of stars. No matter what matter may be contained in the air or what the surface matter may be, we can learn from the color change. This phenomenon of interaction between light and matter is the so-called spectroscopy We need to integrate many aspects of scientific knowledge. It is undeniable that since the color of a star can explain many of its information, it can also be seen to some extent whether it is suitable for living in known life, including us. However, for exoplanets which are very far away from the earth, there are many challenges for us to study them through the existing Spectroscopy Principles: < / P > < p > on the one hand, the telescopes made by human beings before this do not have enough resolution capability, so they can’t distinguish the collected light accurately for the time being, and we can’t identify which light is the planetary divergence of the earth’s size What’s coming out of it, and what’s coming from its parent star, the information of this light is completely blurred. That is to say, even if thousands of exoplanets have been identified, they are even known about their size, location, how they may be on the surface, and whether their parent star may be a star like the sun or a star of greater mass. However, we can’t collect all the light from this planet. In other words, if we stand in a corner of the universe far enough away from the earth, we can’t see that the earth will be a blue planet, and the color of a planet itself will be different because of the color of the stars. Finally, some of the telescopes currently being interviewed are beginning to be able to distinguish the light of stars and planets to some extent, and then use computer simulation to show which distant planets are what colors. < / P > < p > why is it possible that a planet with a green appearance may also be suitable for human habitation? For example, an extrasolar planet named artist rendering looks like a green planet due to the influence of star irradiation, but in fact, it is an exoplanet with a blue atmosphere similar to the earth. As mentioned earlier, what color a star looks like will be affected by the illumination of the starlight, which is a common interaction between the incident light of the parent star and the surface of the star. However, the most effective way for us to search for exoplanets is to reduce the size of the earth’s outer planets, which may be more suitable for us to search for the earth’s planets. < / P > < p > for human beings, the earth and even the solar system will eventually reach the end of life evolution, but we can’t wait for that time to continue to live on this planet. Therefore, it is an important basis for us to continue to live on another planet outside the earth, and even to create a more advanced social civilization. Continue ReadingXiaomi new machine real machine exposure center dig hole screen design or high color thousand yuan machine