The three hottest scientists share the 2019 Nobel

2022-07-30
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Three scientists share the 2019 Nobel Prize in physics

the vast universe. Where do we come from? Is there any other earth like planet in the universe that has evolved into life? Because of their achievements in exploring these two basic problems, the three scientists shared the Nobel Prize in physics for the order quantity of blow molding machines in 2019

the Royal Swedish Academy of Sciences announced on the 8th that jamespiebles from the United States won the prize for cosmology related research, and Michelle mayor and Didier Queiroz from Switzerland won the prize for the first discovery of extrasolar planets. This year's winners changed our view of the universe and helped "us understand the evolution of the universe and the position of the earth in the universe"

According to the communique, Peebles' insight into cosmology has enriched the research in the whole field and become the foundation of contemporary cosmology. Mayor and Queiroz explored unknown planets in our cosmic neighborhood. Their research points to an eternal question: is there life outside the earth

many scientific pioneers have predicted that many stars in the sky must also have planets revolving around them. However, those planets are too far away from the earth and the reflected light is too weak. It is not easy to "see" them

it was not until 1995 that mayor and Queiroz announced that a planet had been discovered outside the solar system for the first time based on the theory that stars would produce small swings due to changes in the gravitational force of planets. The planet orbiting the sun like star "Pegasus 51" in Pegasus about 50 light-years away is named "Pegasus 51B", which is a gaseous planet similar to Jupiter, the largest planet in the solar system. This achievement was published in the internationally renowned academic journal Nature. Some people believe that the discovery of this planet has brought new hope for mankind to find partners in the universe; Some people also call mayor and Queiroz "the discoverers of the new world × 100 ", which is comparable to Columbus' discovery of the new continent

the discovery of "Pegasus 51B" ignited the "spark" of exoplanet exploration. Thanks to the rapid development of various observation technologies, scientists have found more than 4000 planets in the Milky way so far. A variety of new celestial bodies are still being discovered, and their size, shape and orbit are incredibly rich. They challenge our understanding of planetary systems and force scientists to revise the theory of planetary origin

another eternal proposition of mankind is "where to come from". It is the foundation laid by a group of scientists represented by Peebles since the 1960s that has made cosmology a modern science and ushered in a 50 year "golden age"

Peebles constantly improved the theoretical framework he put forward, and finally helped shape our basic understanding of the formation and evolution of the universe since the big bang

about 14billion years ago, the universe was hot and dense at the beginning of the big bang. Since then, the universe has been expanding and cooling. About 400000 years after the big bang, the universe began to become "transparent" and light could shuttle through it. It is in this early radiation that the secrets of the birth and evolution of the universe are recorded

using the theoretical tools and operation methods he created, Peebles successfully "decoded" the "clues" left at the beginning of the birth of the universe. According to his theory, it can be inferred that 95% of the universe is mysterious dark matter and dark energy, while only 5% of the ordinary matter we usually observe

nowadays, dark matter is considered as one of the most challenging topics in the study of the universe. Only by understanding dark matter can we have a deep understanding of the vast universe and its origin. Therefore, scientists around the world have been tirelessly searching for dark matter for a long time, and have launched many related large-scale experimental projects, such as alpha magnetic spectrometer, Large Hadron Collider, etc

wukong, China's first dark matter particle detection satellite, which was launched in 2015, is also highly expected. Recently, the Chinese project team announced the second batch of scientific achievements in the Journal of scientific progress of the United States. "Wukong" used space experiments for the first time in the world to accurately draw the energy spectrum of high-energy proton cosmic rays, and observed new structures of the energy spectrum, which is helpful to "capture" dark matter

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