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I don't know what I want to do after university http://fittor.top/pronhub-net/ hbrwse  However, as the orbits of planets change over time, and as the nature of their stars change over time, no planet is likely to stay in a habitable zone forever. So in this paper, the astronomers did their best to estimate the “habitable zone lifetime” of a planet. Since life took hundreds of millions of years to evolve on Earth, the researchers reason that the best candidates for observation are those with the longest habitable zone lifetimes.
Blair 2020-04-01 00:29:30

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