NASA announced Monday announced the discovery of Kepler-22b, the planet for the first time in the Kepler spacecraft would be the habitable zone, an area of a surface of a star where temperatures of liquid water has .
The discovery of Kepler-22b, which is 600 light years from Earth, scientists closer to finding planets that could harbor life.
"This is an important milestone on the way to Earth to find the twins," said Douglas Hudgins, the Kepler science program in a statement. "The results of Kepler increase in the importance of the scientific mission of NASA Some of the biggest questions about our place in the universe has been designed to respond to a show. "
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One of the properties of Kepler-22b more similar to Earth: The temperature is around 72 degrees Celsius and a radius of 2.4 times the Earth. The planet orbits a star like our sun every 290 days, 75 days in the year of the Earth immediately ashamed.
Last week, announced the National Optical Astronomy Observatory, the discovery of Kepler-21b, a planet with the Earth 1.6 times the radius. But unlike the Kepler-21b, which is only about 3.7 million kilometers from the sun and burn 2960 degrees Celsius, Kepler-22b, about 79 miles from the sun, a pleasant 72 degrees.
However, NASA says it is not clear whether the Rock of Kepler 22b gas or liquid.
Scientists probe Kepler, planets through the analysis of very tired, appeared in the light of distant stars. The "hollow" every time the planet between the sun and Kepler is in motion, thus thwarted the starlight. For a planet to be confirmed, must be in orbit celestial three scientists spiral sun is available.
Since taking Kepler-22b 290 days in orbit around the sun, the world nearly three years for scientists to ensure that the planets. Steve Howell, a researcher at NASA Ames Research Center, the Kepler team presented the Huffington Post that the first reduction in the light of science, a few days after its launch in 2009, Kepler.
"We were just delighted," said Howell Huff Post. "The first clue to begin three days after we make scientific activities immediately after the start."
According to CNN led the Kepler spacecraft, which began in the identification of candidate planet 2326 mission.
But the most exciting discoveries yet to come.
"It's very exciting," said Howell, adding that the spacecraft Kepler to find planets more like Earth. "We Movement orbital periods of approximately equal to the country, and that means very soon we will [planet] heavily on the earth, which we call analog world that we will be there for us to close probably in a year, easily . "
See: Kepler-22b system
This chart compares our own solar system, Kepler-22, the first star system "habitable zone" planet for the NASA Kepler mission. The habitable zone is a great place to play, where temperatures are just water exists in liquid form. Liquid water is essential to life on Earth. (NASA)
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