Exoplanet Kepler 22-b offers best hope yet for a new Earth

NASA discovered planet is about 2.4 times the size of ours and it is in the "Goldilocks zone" of your solar system

a new planet outside our solar system the Earth was identified with many similarities to our own -. As the purpose of better potential for life

Kepler 22-b, which is about 2.4 times the size of the Earth and is in the "Goldilocks zone", has a relatively comfortable surface temperature of about 22C (72F ) and orbits a star similar to our Sun.

But while astronomers believe that "probably" also water and earth, the land secretly hope for a planet that could accommodate new settlements of our own home can be more crowded a disappointment.

about 600 light years from Earth, Kepler 22-b is a considerable walk away, while experts are still not sure if it is mainly composed of rocks, gases or liquids

The discovery was made by NASA's Kepler planet hunting telescope. This is the first time that Kepler has confirmed a planet outside the solar system from Earth in the

not too hot, habitable zone is not too cold.

twice before, astronomers announced the planets are in this area, but it was not promising. One of them was the subject of controversy. The other is on the edge of the hot zone

• Over 1000 candidates planets were discovered by the Kepler telescope, almost doubling the number already known. Ten candidates are close to the size of Earth, while Kepler-22b is the smallest found so far orbit in the center of the habitable zone of a star like our Sun.

"This is an important milestone on the road to find Earth's twin," said Douglas Hudgins, Kepler program scientist at NASA in Washington.

"The results of Kepler continue to demonstrate the importance of missions NASA scientists, which aims to address some of the most important questions about our place in the universe."

"fortune smiled on us with the detection of this planet," said William Borucki, Kepler principal investigator at NASA Ames Research Center in Moffett Field, Calif., who led the team that discovered Kepler 22 - b. "The first pass was caught just three days after the vessel declared operationally ready. We have seen the portion of the definition of the third season of the 2010 holiday." In addition, a directory of cosmic planets and moons that could harbor extraterrestrial life has also been launched by astronomers.

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