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Subject: earth size planets found in....
Replies: 155 Views: 14360

mordant 4.02.11 - 07:57pm
..habitable zone - six planet system. MOFFETT FIELD, Calif. -- NASA's Kepler mission has discovered its first Earth-size planet candidates and its first candidates in the habitable zone, a region where liquid water could exist on a planet's surface. Five of the potential planets are near Earth-size and orbit in the habitable zone of smaller, cooler stars than our sun. * +

mordant 4.02.11 - 07:57pm
Candidates require follow-up observations to verify they are actual planets. Kepler also found six confirmed planets orbiting a sun-like star, Kepler-11. This is the largest group of transiting planets orbiting a single star yet discovered outside our solar system. artists impression of Kepler-11 solar system... * +

mordant 4.02.11 - 07:58pm
In one generation we have gone from extraterrestrial planets being a mainstay of science fiction, to the present, where Kepler has helped turn science fiction into today's reality, said NASA Administrator Charles Bolden. These discoveries underscore the importance of NASA's science missions, which consistently increase understanding of our place in the cosmos. * +

mordant 4.02.11 - 07:58pm
The discoveries are part of several hundred new planet candidates identified in new Kepler mission science data, released on Tuesday, Feb. 1. The findings increase the number of planet candidates identified by Kepler to-date to 1,235. Of these, 68 are approximately Earth-size; 288 are super-Earth-size; 662 are Neptune-size; 165 are the size of Jupiter and 19 are larger than Jupiter. * +

mordant 4.02.11 - 07:58pm
Of the 54 new planet candidates found in the habitable zone, five are near Earth-sized. The remaining 49 habitable zone candidates range from super-Earth size -- up to twice the size of Earth -- to larger than Jupiter..... .... * +

mordant 4.02.11 - 07:59pm
The fact that we've found so many planet candidates in such a tiny fraction of the sky suggests there are countless planets orbiting sun-like stars in our galaxy, said William Borucki of NASA's Ames Research Center in Moffett Field, Calif., the mission's science principal investigator. We went from zero to 68 Earth-sized planet candidates and zero to 54 candidates in the habitable zone.... * +

mordant 4.02.11 - 08:00pm
some of which could have moons with liquid water. * +

mordant 4.02.11 - 08:00pm
Among the stars with planetary candidates, 170 show evidence of multiple planetary candidates. Kepler-11, located approximately 2,000 light years from Earth, is the most tightly packed planetary system yet discovered. All six of its confirmed planets have orbits smaller than Venus, and five of the six have orbits smaller than Mercury's. Kepler-11 has the fullest, most compact planetary system yet discovered beyond our own. * +

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