Isaac Arthur on MSNOpinion
We might discover alien ruins before we meet aliens
If alien civilizations rise and fall, they may leave behind artifacts long after they are gone. From abandoned megastructures ...
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Aliens From a Parallel Universe May Be All Around Us—And We Don’t Even Know It, Study Suggests
Now, researchers in Switzerland and the U.K. have homed in on one particular aspect of this equation to contemplate how a ...
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