A 2015 study concluded that the Universe will form over 10 times more planets than what currently exists. Scientists assume that there are currently 40 billion earth-like planets in the habitable zone of their stars in the Milky Way Galaxy alone and a lot more such planets will form throughout the life of our universe. This would imply that there is at least a 92 percent chance that we are not the only civilization the universe will ever have.
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