NASA scientists in the solar system, found the best place to find life! It’s exciting

Stephen Hawking, a famous British physicist, once said: in the next 100 years, human beings will face severe challenges such as global warming and rapid propagation of genetically engineered viruses. The earth will no longer be suitable for human survival, so we need to find a livable planet as soon as possible and leave the earth as soon as possible.

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Hawking’s warning seems absurd, but it is not without reason. It is undeniable that we have over “reclaimed” the earth, the earth home is no longer “rich”, and there are too many potential crises. Then, if human beings want to leave the earth, they must first find a planet suitable for our survival.

For any creature, it needs a suitable environment to survive and continue life. The earth is in the habitable zone of the solar system. What are habitable planets?

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According to NASA’s definition, a planet in the “habitable zone” means that a planet should be able to maintain a proper distance from its parent star, thus providing conditions for the existence of liquid water on its surface. The heat from the star to the planet is moderate, and the planet is moderate in temperature, neither too cold nor too hot.

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The distance will change according to the state of the parent star. If the star emits more heat and has higher brightness, the distance will be farther. If the star emits less heat, the distance will be closer. The surface temperatures of habitable zone planets range from – 17 to 93 degrees Celsius.

As we all know, there are eight planets in the solar system. However, only the earth has a pleasant temperature, so that water can exist on the surface in liquid form for a long time. The fundamental reason is that the distance between the earth and the sun is neither too close nor too far, and the solar radiation received is just right.

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Human beings have been searching according to the standards of the earth for so many years, hoping to find a planet similar to the earth. Obviously, this is very painful. However, despite the difficulties, hundreds of planets like the earth have been discovered so far.

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For example, Kepler 452b, glitzer 518d, neighboring star B, Ross 128B, etc. these planets are close in size to the earth, and they are in the habitable zone of stars, and they are likely to have suitable temperature and liquid water, so they are considered as habitable planets for life. But these planets are so far away from us that “on-the-spot investigation” can’t be realized before spaceships appear.

According to foreign media reports, NASA researchers say the new model shows that Europa’s internal ocean should be able to support life. This is exciting news.

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Europa, also known as Europa, was discovered by Galileo in 1610. It is the sixth known moon of Jupiter and the fourth largest moon of Jupiter.

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Europa is a mild world. For a long time, people have suspected that Europa also has a hidden ocean, and its waters are under the ice crust, and may be suitable for habitation due to the influence of tidal movement or some elements of the lunar underground geology. Therefore, Europa’s underwater ocean has become one of the targets for scientists to search for extraterrestrial life.

In the latest study, scientists from NASA’s Jet Propulsion Laboratory used Galileo mission data to simulate the composition and other physical characteristics of Europa’s hidden layer, including its underground ocean. They found that the sea water in this world is much like the ocean on earth, which may be very suitable for life.

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So Europa is one of the best places for us to look for life in the solar system. In the next few years, scientists will devote themselves to investigating its livability. Xiaobian believes that soon, we will be able to make a breakthrough and move towards the interstellar civilization.

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