The scientists continue to assess the "twin Earth" was. Based on recent research, Kepler-22b identified the amount of two times the size of Earth, with an average temperature of 22 degrees Celsius.
Kepler-22b also has an atmosphere that could support life. Almost perfect, except that this deficiency: the distance is too far away, 600 light years from Earth.
Kepler 22-b is the first time referred to as "super-Earth" is known to lie in the habitable zone, with a star similar to our sun.
Dubbed as the "Goldilocks Zone", the location where the planet is having a suitable temperature, which allows the existence of water on its surface.
This means, the planet could have continents and oceans - as does Earth. For where there is water, that is where life resides.
Scientists believe, Kepler-22b can not just support life, but also perhaps, there is life there.
"These findings support the belief, that we live in a universe crowded with life," said Dr. Alan Boss of the Carnegie Institution for Science in Washington DC - which helps to identify the planet from the data obtained by the Kepler space telescope, such as loaded Telegraph, December 6, 2011.
As is known, NASA launched the Kepler telescope monitor 155,000 stars - to find the existence of habitable planets.
Kepler orbit around the star-22b, located in the constellation Lyra and Cygnus - smaller in size than the sun and 25 percent more dim.
The planet orbits its star in 290 days, with a distance of 15 percent closer than the distance of Earth to the Sun.
Kepler-22b was right in the middle of the habitable zone of stars - a perfect condition for life.
Meanwhile, two other planets orbiting the star smaller and cooler than the Sun - was recently discovered on the edge of the habitable zone mereka.Orbit them more similar to Mars and Venus.
Reports of findings will be published by the Astrophysical Journal.
Dr. Douglas Hudgins, Kepler program scientist at NASA headquarters in Washington, said, "This is a milestone to find Earth's twin."
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