Astronomers Say Aliens May Already Know of Humans

Part of space exploration is the search for alien life to answer whether or not we are alone in the Universe. Although we have yet to find an alien civilization somewhere out there, some astronomers have argued that aliens may already be aware of our existence. The argument was made by scientists Lisa Kaltenegger from Cornell University and Joshua Pepper from Lehigh University. They suggested that because space agencies and astronomers have already found a way to notice exoplanets in the Universe, the same could be said for alien civilizations…

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