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[November 5 AFP] About twenty percent of the fixed stars similar to the sun have a planet of a size comparable as the earth, The paper made possible [ observation by the naked eye ] for the fixed star which is most close from the earth among them was published on the 4th at the U.S. science academy bulletin (Proceedings of the National Academy of Sciences, PNAS).
It is the team of the scientist who is exploring the exoplanet where a living thing can survive using the Kepler (Kepler) space telescope of the National Aeronautics and Space Administration (NASA) which announced ? paper.
? research team discovers 833 new-planets candidates using the first three-year Hazama’s data among the data of four-year Hazama who collected using the Kepler telescope.
When the first two-year Hazama’s data was analyzed, 351 planets of size comparable as the earth were found.
The planet candidate’s total checked as be alike in the ability to ? Come now amounted to 3538 pieces, and the planet of size comparable as the earth became a total of 647 pieces among them.
According to the team, the number of the planets which exist in a habitable zone (life habitation feasible region) further is 104.
It is said among them that about ten pieces may be the rock planets similar to the earth.
? team computed again the number of fixed stars which may have a planet where a living thing can survive among about 100 billion fixed stars which exist in the Milky Way Galaxy using the statistical technique.
? — as a result of conducting such analysis, the research team obtained the conclusion that it may have a planet of the almost same size as the earth which has the earth surface temperature in which a living thing can survive in about 22% of the fixed stars similar to the sun.
It is said that the distance to the fixed star which exists most near the earth is abbreviation “12 light years”, and it can see it by the naked eye.
The atmosphere and oxygen to which ? Kepler plan maintains a life to these planets now, Although it has not resulted till the place which clarifies the details whether water exists or not, this discovery is one important step in extraterrestrial life investigation, and the research team says that future state-of-the-art technology will reply to the further question.