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Hrvatske Željeznice (Croatian Railways)
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As the Sun gets older and brighter, Earth will eventually get edged out of the habitable zone. Once this happens, Earth's oceans will dry up and the planet will get too hot and unstable to support life.
Kepler-186f is the first Earth-size planet discovered in the potentially 'habitable zone' around another star, where liquid water could exist on the planet's surface
A primary goal of the Kepler mission is to identify planets that are in the habitable zones of their stars, meaning it's neither too hot nor too cold for liquid water and potentially life to exist.
Added Siegfried Eggl, associate researcher at JPL: "Perhaps most surprisingly, our findings suggest that, under certain conditions, the presence of a giant planet can actually increase the size of the habitable zone, which is the area where your terrestrial planet receives the right amount of light in order to support liquid water on its surface.
The 10 new Earth-size planets bring the total to 50 that exist in habitable zones around the galaxy.
While some scientists say life could exist outside the habitable zone, he thinks the habitable zone itself isn't entirely life-friendly.
The new worlds double the number of small exo-planets believed to be circling their stars in the "habitable zone" - the narrow region in which temperatures are mild enough to allow liquid surface water.
Recently astronomers from the Kepler mission discovered Earth-size planets in the habitable zone. Meanwhile on and near Earth NASA pushes the boundaries of space exploration with the design of the Space Launch System (SLS), testing of the Orion capsule and fourteen years of continued human exploration and operation aboard the International Space Station (ISS).
The habitable zone of a star is that Goldilocks distance where temperatures are not too hot, not too cold, but just right for water to exist in its life-friendly liquid state--thus creating a comfortable environment for life as we know it potentially to develop.
New York (AirGuideBusiness - Business & Industry Features) Mon, Apr 21, 2014 - Using NASA's Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting a star in the "habitable zone" -- the range of distance from a star where liquid water might pool on the surface of an orbiting planet.
Kepler-186 is almost exactly the same size as Earth and occupies its parent star's "habitable zone" where temperatures are mild enough to allow liquid surface water.
The find ''is special because we already know that a planet of this size and in the habitable zone is capable of supporting life as we know it,'' lead researcher Elisa Quintana of NASA's Ames Research Center said at a news conference.