nasa 地球型惑星を発見

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National Aeronautics and Space Administration (NASA) yesterday, Space Telescope, "Kepler (Kepler)" for the first time, extrasolar habitable zone (the area of life can survive) announced that Earth-like planets in the confirmed.

"Kepler 22b (Kepler-22b)" This planet was named, in March 2009, not long from launch Kepler, have been identified tremor that, NASA is about this, "Kepler 22b" configured three times before, make sure that across. Whose existence was first identified.

"Kepler 22b" orbital period of 290 days. There are light-years away from Earth 600 is 2.4 times the size of the Earth "Earth-like planets giant" is categorized. Surface temperature is expected to be about 22 degrees, rocky planets, gas planets, planet of ice, which is not clear whether those classifications.

Also in May this year, the rock type planets with life there is a requirement of the French team of astronomers, "Gliese 581d (Gliese 581d)" to ensure that. In August, 36 light-years away from planet earth team of Swiss astronomers "HD 85512 b" has been confirmed that the main star in Habitaburu_Zon. According to NASA, the main stars of these planets are smaller than the solar temperature is low.

On the other hand, the terrestrial planets in habitable zones were identified in the solar system so far out, "Kepler 22b" is the lowest it.

But just because you have all the conditions immediately, "Kepler 22b" does not mean there is no life in the presence of. Water necessary for the existence of life on the planet, suitable temperature, to preserve the atmosphere must be adequate distance from the star.

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