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Where Are All the Aliens? The Fermi Paradox - Universe Today
Consider this. The Universe is enormous. There are as many as four-hundred billion stars in our galaxy: the Milky Way. And there are more than one-hundred-and-seventy billion galaxies in the observable Universe. Most of those stars have planets, and many of those planets have got to contain useful minerals and fall within their star’s habitable … Continue reading "Where Are All the Aliens? The Fermi Paradox"