I think that while NASA had discovered a foreign planet just like Earth for ever, it does not mean there will be live. We have not been able to reach the surface of it to see if there really is the land of ice, oceans and continents. And despite knowing there's air, oceans, then we also need to know the chemical nature of the atmosphere and the ocean. Because a can of water and air on a foreign planet recently discovered are not suitable for human living. But with the distance of 1400 light-years, that scientists approach the surface of it and considers the chemical properties is extremely difficult. Because distance too far so that current scientific technology can not meet. And if to bring humanity to it by 1 spacecraft to go with the speed of light, then it also takes years to 1400 there should be something living on other planets not exception, if want to go with the speed of light need infinite energy source, but we can't. If we can take advantage of the black hole to go to a foreign planet is more than justified, because when in near the horizon of the black hole, everything being tidal forces stretching out and piece as a strand of pasta. So with such a gap, I think we should not rush to the conclusion that the living planet exception, because "the same" is not related to the "can survive.
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