Finally a planet as the Earth 2014 New discovery

"The astronomers had waited for this moment since 1995, from when the first planet was open out of the Solar System." Raffaele Gratton, researcher of the National institute of Astrophysics, synthesizes so the importance of the announcement given from the Nasa yesterday. Kepler-186F, the first planet similar to the Earth individualized in the depths of the space, opens new perspectives and confirmation that in the universe there are other places that could entertain the life.   Doctor Gratton, because it was looked for with so much interest a planet as this? The idea leading it is that the planets with the characteristics of the Earth are the most proper to entertain the life. For a long time it looked for one of dimensions similar to our world. therefore with every probability rocky. and to a distance from his/her own star that allows such superficial temperatures to allow the presence of liquid water.   Does it deal with hypothesis or do we already have the certainty that is some water to the liquid state? For the time being I am hypothesis. The temperature of the planet also depends on the composition of the atmosphere and from how much the effect is efficient it shuts. Venus for instance has an irraggiamento equal to around twice that of the Earth, therefore in theory there could be liquid water, but on his/her surface there are more than 500 centigrade degrees. To have the certainty of thing are found on Kepler-186F it would need to study in detail the gases that surround him/it, but this is very difficult because it is very small and very distant, to about 500 light from us.   Is Kepler-186F an unique case or he/she is thought that there are many similar planets? You/they should be enough numerous. The most recent studies esteem that in a 30 year-old ray light from the Earth is at least one of it. In the next years it is hoped to start new more proper spatial missions for to individualize nearer planets to the Earth.   Is Qual the Italian contribution to this type of searches? Our Country has departed some late but you/he/she is recovering terrestrial and it participates in many important projects. Italy has for instance involved, among the others, in the missions Plato and Cheops, that aim to discover planets distances extrasolari more brought closer.   The announcement of the Nasa makes to dream many impassioned of science fiction. Will it be possible to reach Kepler-186F sooner or later? To go there is impossible: it is too far. Also to communicate with a possible civilization sending some messages radio would be impracticable: to reach destination they would employ 500 years, therefore we would have only an answer to 1000 years of distance. In reality "habitable planet" it doesn't mean "planet lived by intelligent forms of life." All it takes is thinking about the history of the Earth. It exists from million of years, but it is populated from intelligent forms of life from few thousand of years and from forms of life able to have been communicating only away radio for one century. The probabilities to find really in this moment someone with which to communicate is very low.